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Penn State University
1.
Zheng, Saijing.
Adaptation as an Integrated Endeavor: Learning from the Timeline Deployment Study.
Degree: 2014, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/20563
► The past few years have witnessed the explosive growth of Online Social Networks (OSNs) and they have played an important role in people’s daily life.…
(more)
▼ The past few years have witnessed the explosive growth of
Online Social Networks (OSNs) and they have played an important role in people’s daily life. OSN providers frequently introduce new user interfaces, aiming to improve user experience. However, as it is hard to design a perfect interface that exactly fit all users’ needs, such frequent interface changes have resulted in multiple expected and unexpected consequences. This problem has drawn significant attention from both industries and academies. Lots of previous studies have focused on user
adaptation issues in organizational contexts, but less has been done to understand user
adaptation in the context of OSNs. In this thesis we conducted a qualitative interview study to analyze factors that affect user
adaptation and strategies that users apply to cope with the problems during their
adaptation process. The findings reveal both promoters and barriers of user
adaptation and also identified two types of
adaptation strategies: routine strategies and user-created strategies. Based on these findings, we suggest the user
adaptation in the context of OSNs could be critically considered as an integrated endeavor.
Advisors/Committee Members: Heng Xu, Thesis Advisor/Co-Advisor, Mary Beth Rosson, Thesis Advisor/Co-Advisor, Madhu Reddy, Thesis Advisor/Co-Advisor.
Subjects/Keywords: Online Social Network; Facebook; Timeline; Adaptation; Design
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APA (6th Edition):
Zheng, S. (2014). Adaptation as an Integrated Endeavor: Learning from the Timeline Deployment Study. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/20563
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Zheng, Saijing. “Adaptation as an Integrated Endeavor: Learning from the Timeline Deployment Study.” 2014. Thesis, Penn State University. Accessed January 22, 2021.
https://submit-etda.libraries.psu.edu/catalog/20563.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Zheng, Saijing. “Adaptation as an Integrated Endeavor: Learning from the Timeline Deployment Study.” 2014. Web. 22 Jan 2021.
Vancouver:
Zheng S. Adaptation as an Integrated Endeavor: Learning from the Timeline Deployment Study. [Internet] [Thesis]. Penn State University; 2014. [cited 2021 Jan 22].
Available from: https://submit-etda.libraries.psu.edu/catalog/20563.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Zheng S. Adaptation as an Integrated Endeavor: Learning from the Timeline Deployment Study. [Thesis]. Penn State University; 2014. Available from: https://submit-etda.libraries.psu.edu/catalog/20563
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Université de Lorraine
2.
Fernández Pérez, Iñaki.
Distributed Embodied Evolutionary Adaptation of Behaviors in Swarms of Robotic Agents : Adaptation de comportements par évolution incarnée et distribuée dans des essaims d'agents robotiques.
Degree: Docteur es, Informatique, 2017, Université de Lorraine
URL: http://www.theses.fr/2017LORR0300
► Les essaims de robots sont des systèmes composés d’un grand nombre de robots relativement simples. Du fait du grand nombre d’unités, ces systèmes ont de…
(more)
▼ Les essaims de robots sont des systèmes composés d’un grand nombre de robots relativement simples. Du fait du grand nombre d’unités, ces systèmes ont de bonnes propriétés de robustesse et de passage à l’échelle. Néanmoins, il reste en général difficile de concevoir manuellement des contrôleurs pour les essaims de robots, à cause de la grande complexité des interactions inter-robot. Par conséquent, les approches automatisées pour l’apprentissage de comportements d’essaims de robots constituent une alternative attrayante. Dans cette thèse, nous étudions l’adaptation de comportements d’essaim de robots avec des méthodes de Embodied Evolutionary Robotics (EER) distribuée. Ainsi, nous fournissons trois contributions principales : (1) Nous étudions l’influence de la pression à la sélection dirigée vers une tâche dans un essaim d’agents robotiques qui utilisent une approche d’EER distribuée. Nous évaluons l’impact de différents opérateurs de sélection dans un algorithme d’EER distribuée pour un essaim de robots. Nos résultats montrent que le plus forte la pression à la sélection est, les meilleures performances sont atteintes lorsque les robots doivent s’adapter à des tâches particulières. (2) Nous étudions l’évolution de comportements collaboratifs pour une tâche de récolte d’objets dans un essaim d’agents robotiques qui utilisent une approche d’EER distribuée. Nous réalisons un ensemble d’expériences où un essaim de robots s’adapte à une tâche collaborative avec un algorithme d’EER distribuée. Nos résultats montrent que l’essaim s’adapte à résoudre la tâche, et nous identifions des limitations concernant le choix d’action. (3) Nous proposons et validons expérimentalement un mécanisme complètement distribué pour adapter la structure des neurocontrôleurs des robots dans un essaim qui utilise une approche d’EER distribuée, ce qui permettrait aux neurocontrôleurs d’augmenter leur expressivité. Nos expériences montrent que notre mécanisme, qui est complètement décentralisé, fournit des résultats similaires à un mécanisme qui dépend d’une information globale
Robot swarms are systems composed of a large number of rather simple robots. Due to the large number of units, these systems, have good properties concerning robustness and scalability, among others. However, it remains generally difficult to design controllers for such robotic systems, particularly due to the complexity of inter-robot interactions. Consequently, automatic approaches to synthesize behavior in robot swarms are a compelling alternative. In this thesis, we focus on online behavior adaptation in a swarm of robots using distributed Embodied Evolutionary Robotics (EER) methods. To this end, we provide three main contributions: (1) We investigate the influence of task-driven selection pressure in a swarm of robotic agents using a distributed EER approach. We evaluate the impact of a range of selection pressure strength on the performance of a distributed EER algorithm. The results show that the stronger the task-driven selection pressure, the better the…
Advisors/Committee Members: Charpillet, François (thesis director), Boumaza, Amine (thesis director).
Subjects/Keywords: Robotique Évolutionaire en Essaim; Adaptation en Ligne; Neuroévolution; Evolutionary Swarm Robotics; Online Adaptation; Neuroevolution; 006.3
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MLA ·
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APA (6th Edition):
Fernández Pérez, I. (2017). Distributed Embodied Evolutionary Adaptation of Behaviors in Swarms of Robotic Agents : Adaptation de comportements par évolution incarnée et distribuée dans des essaims d'agents robotiques. (Doctoral Dissertation). Université de Lorraine. Retrieved from http://www.theses.fr/2017LORR0300
Chicago Manual of Style (16th Edition):
Fernández Pérez, Iñaki. “Distributed Embodied Evolutionary Adaptation of Behaviors in Swarms of Robotic Agents : Adaptation de comportements par évolution incarnée et distribuée dans des essaims d'agents robotiques.” 2017. Doctoral Dissertation, Université de Lorraine. Accessed January 22, 2021.
http://www.theses.fr/2017LORR0300.
MLA Handbook (7th Edition):
Fernández Pérez, Iñaki. “Distributed Embodied Evolutionary Adaptation of Behaviors in Swarms of Robotic Agents : Adaptation de comportements par évolution incarnée et distribuée dans des essaims d'agents robotiques.” 2017. Web. 22 Jan 2021.
Vancouver:
Fernández Pérez I. Distributed Embodied Evolutionary Adaptation of Behaviors in Swarms of Robotic Agents : Adaptation de comportements par évolution incarnée et distribuée dans des essaims d'agents robotiques. [Internet] [Doctoral dissertation]. Université de Lorraine; 2017. [cited 2021 Jan 22].
Available from: http://www.theses.fr/2017LORR0300.
Council of Science Editors:
Fernández Pérez I. Distributed Embodied Evolutionary Adaptation of Behaviors in Swarms of Robotic Agents : Adaptation de comportements par évolution incarnée et distribuée dans des essaims d'agents robotiques. [Doctoral Dissertation]. Université de Lorraine; 2017. Available from: http://www.theses.fr/2017LORR0300

Boise State University
3.
Baldwin, Sally J.
Adaptation and Acceptance in Online Course Design from Four-Year College and University Instructors: An Analysis using Grounded Theory.
Degree: 2017, Boise State University
URL: https://scholarworks.boisestate.edu/td/1241
► This study investigated the perspective of tenured and tenure-track instructors at public four-year colleges and universities involved in online course design. Using a classic grounded…
(more)
▼ This study investigated the perspective of tenured and tenure-track instructors at public four-year colleges and universities involved in online course design. Using a classic grounded theory approach, 21 tenured and tenure-track instructors who had designed online courses for public four-year colleges and universities were interviewed about their experience. A pilot study was performed on this subject earlier that tentatively suggested instructors rarely use formal instructional design principles, yet their design tasks show a striking similarity to those formalized in the ADDIE model. In this study, the findings of the pilot study were expanded. Additional data helped develop a theory of adaptation and acceptance in online course design. This theory posits that instructors adapt to the online environment by incorporating what they are familiar with from face-to-face instruction. This process of incorporation is referred to here as adaptation. In addition, there is a desire for what is here designated as acceptance of their online courses: from their students, colleagues, and administrators. In response to these basic social processes, instructors develop strategies to compensate online for elements that they are accustomed to in traditional face-to-face courses (e.g., eye contact). This study provided an opportunity to understand the reason for the process of online course design from the online instructor’s viewpoint, rather than simply focusing on the process of course design itself, and serves as a basis for generating hypotheses for further research.
Subjects/Keywords: acceptance; assimilation; adaptation; course design; educational technology; online education; higher education; instructional design; instructional strategy; online learning; Online and Distance Education
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
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APA (6th Edition):
Baldwin, S. J. (2017). Adaptation and Acceptance in Online Course Design from Four-Year College and University Instructors: An Analysis using Grounded Theory. (Thesis). Boise State University. Retrieved from https://scholarworks.boisestate.edu/td/1241
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Baldwin, Sally J. “Adaptation and Acceptance in Online Course Design from Four-Year College and University Instructors: An Analysis using Grounded Theory.” 2017. Thesis, Boise State University. Accessed January 22, 2021.
https://scholarworks.boisestate.edu/td/1241.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Baldwin, Sally J. “Adaptation and Acceptance in Online Course Design from Four-Year College and University Instructors: An Analysis using Grounded Theory.” 2017. Web. 22 Jan 2021.
Vancouver:
Baldwin SJ. Adaptation and Acceptance in Online Course Design from Four-Year College and University Instructors: An Analysis using Grounded Theory. [Internet] [Thesis]. Boise State University; 2017. [cited 2021 Jan 22].
Available from: https://scholarworks.boisestate.edu/td/1241.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Baldwin SJ. Adaptation and Acceptance in Online Course Design from Four-Year College and University Instructors: An Analysis using Grounded Theory. [Thesis]. Boise State University; 2017. Available from: https://scholarworks.boisestate.edu/td/1241
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Oregon
4.
Shaykis, Sylvia.
A Feasibility Study of an Online Adaptation of a Video Coaching Parenting Intervention: Filming Interactions to Nurture Development (FIND) Web-Based.
Degree: PhD, Department of Counseling Psychology and Human Services, 2020, University of Oregon
URL: https://scholarsbank.uoregon.edu/xmlui/handle/1794/25263
► This study examined the feasibility of a web-based adaptation of a promising parenting intervention and examined preliminary data on its effectiveness. Filming Interactions to Nurture…
(more)
▼ This study examined the feasibility of a web-based
adaptation of a promising parenting intervention and examined preliminary data on its effectiveness. Filming Interactions to Nurture Development (FIND) is a strength-based program designed to increase developmentally appropriate, supportive, nurturing behaviors among parents of young children. FIND is also theorized to increase parent sense of competence and decrease parenting stress. The present study adapted FIND to a web-based format to explore feasibility and conduct preliminary analyses on parenting outcomes.
Oregon parents with children aged 0 through 4 were recruited through
online advertisements and in-person community recruitment. Participants completed
online pre- and post-intervention surveys and participated in the FIND: Web-Based intervention (including sharing videos of parent-child interactions) using a secure
online app on their mobile devices. Participants’ first and last videos were also coded for frequency and consistency of positive responsive parenting behaviors.
Results showed that significant changes to both research and intervention protocols must be made prior to further research and implementation of FIND: Web-Based. Despite significant recruitment efforts, the small sample size coupled with high attrition rates demonstrated that overall, FIND: Web-Based and the current research procedures were largely not feasible.
In terms of exploration of preliminary outcomes, no statistically significant results were found for group changes in parent sense of competence or positive parenting behaviors using video coding. On the other hand, participants did report a significant decrease in parenting stress at post-intervention (small to medium effect size), specifically in parent-child dysfunctional interactions (medium effect size).
The small sample of participants who completed the study reported overall satisfaction with the intervention. Many felt the content of the intervention was useful and relevant, found the videos helpful, and enjoyed the strength-based perspective. Most liked the convenience, flexibility, and/or accessibility of the novel web-based format. On the other hand, participants had challenges filming themselves with their child(ren) and sharing videos using the
online app, as well as other technological difficulties. Implications of these findings include the importance of significantly modifying the study design, procedures, and
online intervention format in order to increase feasibility of any future research on FIND: Web-Based.
Advisors/Committee Members: Stormshak, Beth (advisor).
Subjects/Keywords: Early childhood; Intervention adaptation; Online parenting program; Parenting; Prevention; Video coaching
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Shaykis, S. (2020). A Feasibility Study of an Online Adaptation of a Video Coaching Parenting Intervention: Filming Interactions to Nurture Development (FIND) Web-Based. (Doctoral Dissertation). University of Oregon. Retrieved from https://scholarsbank.uoregon.edu/xmlui/handle/1794/25263
Chicago Manual of Style (16th Edition):
Shaykis, Sylvia. “A Feasibility Study of an Online Adaptation of a Video Coaching Parenting Intervention: Filming Interactions to Nurture Development (FIND) Web-Based.” 2020. Doctoral Dissertation, University of Oregon. Accessed January 22, 2021.
https://scholarsbank.uoregon.edu/xmlui/handle/1794/25263.
MLA Handbook (7th Edition):
Shaykis, Sylvia. “A Feasibility Study of an Online Adaptation of a Video Coaching Parenting Intervention: Filming Interactions to Nurture Development (FIND) Web-Based.” 2020. Web. 22 Jan 2021.
Vancouver:
Shaykis S. A Feasibility Study of an Online Adaptation of a Video Coaching Parenting Intervention: Filming Interactions to Nurture Development (FIND) Web-Based. [Internet] [Doctoral dissertation]. University of Oregon; 2020. [cited 2021 Jan 22].
Available from: https://scholarsbank.uoregon.edu/xmlui/handle/1794/25263.
Council of Science Editors:
Shaykis S. A Feasibility Study of an Online Adaptation of a Video Coaching Parenting Intervention: Filming Interactions to Nurture Development (FIND) Web-Based. [Doctoral Dissertation]. University of Oregon; 2020. Available from: https://scholarsbank.uoregon.edu/xmlui/handle/1794/25263

Louisiana State University
5.
Michalik, Lyndsay.
"Post Your Version Here!": Performances in/of Online, Noncommercial, Video-to-Video Adaptations.
Degree: PhD, Communication, 2014, Louisiana State University
URL: etd-03162014-191410
;
https://digitalcommons.lsu.edu/gradschool_dissertations/360
► Processes of creative adaptation no longer fit traditional, culturally sanctioned forms, like commercial book-to-film adaptation, or vice versa. Meanwhile, internet users are demonstrating how…
(more)
▼ Processes of creative adaptation no longer fit traditional, culturally sanctioned forms, like commercial book-to-film adaptation, or vice versa. Meanwhile, internet users are demonstrating how noncommercial, creative text adaptation using video technology has become an everyday art form, a skill set, a form of communication, and a means of cultural commentary. Internet video adapters physically perform in their own videos and they create videos that work performatively online. Negotiating the slippery spaces between copyright, creativity, and cultural commentary, these creators adapt videos in myriad ways, and find spaces to share their adaptations online, despite (for most) a lack of financial return for their creative work. Yet, little scholarship addresses this type of online adaptation. Current studies of internet video memes do not explicitly address how memes work as adaptation or as performance. We are also at a loss for theories about adaptation and performance that serve contemporary, internet-literate publics. In this dissertation, I explore how traditional notions of the processes and products of adaptation are changing. I argue that internet video memes and “sweded” videos are performances of adaptation. Focusing on four case studies, each of which represents types of adaptations that do not fit well into current adaptation theories, I develop a typology for online video-to-video adaptation that could be useful in multidisciplinary or interdisciplinary academic and/or public conversations. Using this typology, I map some of the (mostly uncharted) terrain of online video adaptation performances, elucidate the limits of and expand upon contemporary theories of adaptation, and clarify some major problems and paradoxes of current US copyright law, as it pertains to online video adaptation. Throughout, I show how the adaptations in this study create, sustain, and/or upend contemporary culture, concluding that most (if not all) online video-to-video adaptation trends carry creative potential, along with potential ethical quandaries.
Subjects/Keywords: YouTube; Online video; Sweded movies; Sweding; Internet memes; Adaptation; Performance Studies
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Michalik, L. (2014). "Post Your Version Here!": Performances in/of Online, Noncommercial, Video-to-Video Adaptations. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-03162014-191410 ; https://digitalcommons.lsu.edu/gradschool_dissertations/360
Chicago Manual of Style (16th Edition):
Michalik, Lyndsay. “"Post Your Version Here!": Performances in/of Online, Noncommercial, Video-to-Video Adaptations.” 2014. Doctoral Dissertation, Louisiana State University. Accessed January 22, 2021.
etd-03162014-191410 ; https://digitalcommons.lsu.edu/gradschool_dissertations/360.
MLA Handbook (7th Edition):
Michalik, Lyndsay. “"Post Your Version Here!": Performances in/of Online, Noncommercial, Video-to-Video Adaptations.” 2014. Web. 22 Jan 2021.
Vancouver:
Michalik L. "Post Your Version Here!": Performances in/of Online, Noncommercial, Video-to-Video Adaptations. [Internet] [Doctoral dissertation]. Louisiana State University; 2014. [cited 2021 Jan 22].
Available from: etd-03162014-191410 ; https://digitalcommons.lsu.edu/gradschool_dissertations/360.
Council of Science Editors:
Michalik L. "Post Your Version Here!": Performances in/of Online, Noncommercial, Video-to-Video Adaptations. [Doctoral Dissertation]. Louisiana State University; 2014. Available from: etd-03162014-191410 ; https://digitalcommons.lsu.edu/gradschool_dissertations/360
6.
Crocomo, Márcio Kassouf.
Um algoritmo evolutivo para aprendizado on-line em jogos eletrônicos.
Degree: Mestrado, Ciências de Computação e Matemática Computacional, 2008, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/55/55134/tde-09052008-160236/
;
► Este trabalho verifica a possibilidade de se aplicar Algoritmos Evolutivos no aprendizado on-line de jogos. Alguns autores concordam que Algoritmos Evolutivos não são aplicáveis na…
(more)
▼ Este trabalho verifica a possibilidade de se aplicar Algoritmos Evolutivos no aprendizado on-line de jogos. Alguns autores concordam que Algoritmos Evolutivos não são aplicáveis na prática para se atingir o objetivo em questão. É com a intenção de contestar a veracidade desta afirmação que foi desenvolvido o presente trabalho. Para atingir o objetivo proposto, foi desenvolvido um jogo de computador, no qual o algoritmo de aprendizado gera estratégias inteligentes e adaptativas para os caracteres não controlados pelo jogador através de um algoritmo evolutivo. Desta forma, a função do algoritmo evolutivo é fazer com que a estratégia utilizada pelo computador se adapte à estratégia utilizada pelo usuário a cada vez que joga. É apresentada uma revisão bibliográfica a respeito de Computação Evolutiva e as técnicas utilizadas para implementar comportamentos inteligentes para os caracteres controlados por computador nos jogos atuais, esclarecendo suas vantagens, desvantagens e algumas possíveis aplicações. São também explicados o jogo e os algoritmos implementados, assim como os experimentos realizados e seus resultados. Por fim, é feita uma comparação do algoritmo evolutivo final com uma outra técnica de adaptação, chamada Dynamic Scripting. Assim, este trabalho oferece contribuições para o campo de Computação Evolutiva e Inteligência Artificial aplicada a jogos
The goal of this work is to verify if it is possible to apply Evolutionary Algorithms to online learning in computer games. Some authors agree that evolutionary algorithms do not work properly in that case. With the objective of contesting this affirmation, this work was performed. To accomplish the goal of this work, a computer game was developed, in which the learning algorithm must create intelligent and adaptive strategies to control the non-player characters using an evolutionary algorithm. Therefore, the aim of the evolutionary algorithm is to adapt the strategy used by the computer according to the player\'s actions during the game. A review on Evolutionary Computation and the techniques used to produce intelligent behaviors for the computer controlled characters in modern game is presented, exposing the advantages, the problems and some applications of each technique. The proposed game is also explained, together with the implemented algorithms, the experiments and the obtained results. Finally, it is presented a comparison between the implemented algorithm and the Dynamic Script technique. Thus, this work offers contributions to the fields of Evolutionary Computation and Artificial Intelligence applied to games
Advisors/Committee Members: Simões, Eduardo do Valle.
Subjects/Keywords: Adaptação; Adaptation; Algoritmos evolutivos; Aprendizado on-line; Evolutionary algorithms; Games; Jogos; Online learning
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Crocomo, M. K. (2008). Um algoritmo evolutivo para aprendizado on-line em jogos eletrônicos. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/55/55134/tde-09052008-160236/ ;
Chicago Manual of Style (16th Edition):
Crocomo, Márcio Kassouf. “Um algoritmo evolutivo para aprendizado on-line em jogos eletrônicos.” 2008. Masters Thesis, University of São Paulo. Accessed January 22, 2021.
http://www.teses.usp.br/teses/disponiveis/55/55134/tde-09052008-160236/ ;.
MLA Handbook (7th Edition):
Crocomo, Márcio Kassouf. “Um algoritmo evolutivo para aprendizado on-line em jogos eletrônicos.” 2008. Web. 22 Jan 2021.
Vancouver:
Crocomo MK. Um algoritmo evolutivo para aprendizado on-line em jogos eletrônicos. [Internet] [Masters thesis]. University of São Paulo; 2008. [cited 2021 Jan 22].
Available from: http://www.teses.usp.br/teses/disponiveis/55/55134/tde-09052008-160236/ ;.
Council of Science Editors:
Crocomo MK. Um algoritmo evolutivo para aprendizado on-line em jogos eletrônicos. [Masters Thesis]. University of São Paulo; 2008. Available from: http://www.teses.usp.br/teses/disponiveis/55/55134/tde-09052008-160236/ ;

University of Ottawa
7.
Olorunnimbe, Muhammed.
Intelligent Adaptation of Ensemble Size in Data Streams Using Online Bagging
.
Degree: 2015, University of Ottawa
URL: http://hdl.handle.net/10393/32340
► In this era of the Internet of Things and Big Data, a proliferation of connected devices continuously produce massive amounts of fast evolving streaming data.…
(more)
▼ In this era of the Internet of Things and Big Data, a proliferation of connected devices continuously produce massive amounts of fast evolving streaming data. There is a need to study the relationships in such streams for analytic applications, such as network intrusion detection, fraud detection and financial forecasting, amongst other. In this setting, it is crucial to create data mining algorithms that are able to seamlessly adapt to temporal changes in data characteristics that occur in data streams. These changes are called concept drifts. The resultant models produced by such algorithms should not only be highly accurate and be able to swiftly adapt to changes. Rather, the data mining techniques should also be fast, scalable, and efficient in terms of resource allocation. It then becomes important to consider issues such as storage space needs and memory utilization. This is especially relevant when we aim to build personalized, near-instant models in a Big Data setting.
This research work focuses on mining in a data stream with concept drift, using an online bagging method, with consideration to the memory utilization. Our aim is to take an adaptive approach to resource allocation during the mining process. Specifically, we consider metalearning, where the models of multiple classifiers are combined into an ensemble, has been very successful when building accurate models against data streams. However, little work has been done to explore the interplay between accuracy, efficiency and utility. This research focuses on this issue. We introduce an adaptive metalearning algorithm that takes advantage of the memory utilization cost of concept drift, in order to vary the ensemble size during the data mining process. We aim to minimize the memory usage, while maintaining highly accurate models with a high utility.
We evaluated our method against a number of benchmarking datasets and compare our results against the state-of-the art. Return on Investment (ROI) was used to evaluate the gain in performance in terms of accuracy, in contrast to the time and memory invested. We aimed to achieve high ROI without compromising on the accuracy of the result. Our experimental results indicate that we achieved this goal.
Subjects/Keywords: Data stream;
Concept drift;
Metalearning;
Cost sensitive adaptation;
ROI;
Utility;
Adaptive ensemble size;
Online bagging
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Olorunnimbe, M. (2015). Intelligent Adaptation of Ensemble Size in Data Streams Using Online Bagging
. (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/32340
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Olorunnimbe, Muhammed. “Intelligent Adaptation of Ensemble Size in Data Streams Using Online Bagging
.” 2015. Thesis, University of Ottawa. Accessed January 22, 2021.
http://hdl.handle.net/10393/32340.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Olorunnimbe, Muhammed. “Intelligent Adaptation of Ensemble Size in Data Streams Using Online Bagging
.” 2015. Web. 22 Jan 2021.
Vancouver:
Olorunnimbe M. Intelligent Adaptation of Ensemble Size in Data Streams Using Online Bagging
. [Internet] [Thesis]. University of Ottawa; 2015. [cited 2021 Jan 22].
Available from: http://hdl.handle.net/10393/32340.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Olorunnimbe M. Intelligent Adaptation of Ensemble Size in Data Streams Using Online Bagging
. [Thesis]. University of Ottawa; 2015. Available from: http://hdl.handle.net/10393/32340
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Southern California
8.
Sharma, Pramod Kumar.
Effective incremental learning and detector adaptation
methods for video object detection.
Degree: PhD, Computer Science, 2014, University of Southern California
URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/489008/rec/2189
► Object detection is a challenging problem in Computer Vision. With increasing use of social media, smart phones and modern digital cameras thousands of videos are…
(more)
▼ Object detection is a challenging problem in Computer
Vision. With increasing use of social media, smart phones and
modern digital cameras thousands of videos are uploaded on the
Internet everyday. Object detection is very critical for analyzing
these videos for many tasks such as summarization, description,
scene analysis, tracking or activity recognition. ❧ Typically, an
object detector is trained in an offline manner by collecting
thousands of positive and negative training samples. However, due
to large variations in appearance, pose, illumination, background
scene and similarity to other objects; it is very difficult to
train a generalized object detector that can give high performance
across different test videos. We address this problem by proposing
detector
adaptation methods which collect
online samples from a
given test video and train an adaptive/incremental classifier using
this training data in order to achieve high performance. ❧ First we
propose an efficient incremental learning method for cascade of
boosted classifiers, which collects training data in a supervised
manner and adjusts the parameters of offline trained cascade of
boosted classifiers by combining
online loss with offline loss.
Then, we propose an unsupervised incremental learning approach
which collects
online samples automatically from a given test video
using tracking information. However
online samples collected in an
unsupervised manner are prone to the labeling errors, hence instead
of assigning hard labels to
online samples, we utilize Multiple
Instance Learning (MIL) approach and assign labels to the bags of
instances not to the individual samples. We propose an MIL loss
function for Real Adaboost framework to train our incremental
detector. ❧ While the above approach gives good performance, it is
limited to Real Adaboost based offline trained detector. We propose
an efficient detector
adaptation method which works with various
kinds of offline trained detectors. In this approach first we apply
offline trained detector at a high threshold to obtain confident
detection responses. These detection responses are tracked using a
tracking-by-detection method and using obtained detection responses
and tracking output
online samples are collected. However, positive
online samples can have different articulations and pose
variations. Hence they are divided into different categories using
a pose classifier trained in the offline setting. We train a
multi-class random fern adaptive classifier using collected
online
samples. During testing stage, first we apply offline trained
detector at a low threshold, then we apply adaptive classifier on
the obtained detection responses, which either accepts the
detection response as a true response or rejects it as the false
alarm. In this manner, we focus on improving the precision of
offline trained detector. ❧ We extend this approach by proposing a
multi-class boosted random fern adaptive classifier in order to
select discriminative random ferns for high detection performance.
We further incorporate…
Advisors/Committee Members: Nevatia, Ramakant (Committee Chair), Medioni, Gerard G. (Committee Member), Medioni, Gérard G. (Committee Member), Kuo, C.-C. Jay (Committee Member).
Subjects/Keywords: object detection; human detection; adaptation; incremental learning; multiple instance learning; unsupervised; online; video; surveillance
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sharma, P. K. (2014). Effective incremental learning and detector adaptation
methods for video object detection. (Doctoral Dissertation). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/489008/rec/2189
Chicago Manual of Style (16th Edition):
Sharma, Pramod Kumar. “Effective incremental learning and detector adaptation
methods for video object detection.” 2014. Doctoral Dissertation, University of Southern California. Accessed January 22, 2021.
http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/489008/rec/2189.
MLA Handbook (7th Edition):
Sharma, Pramod Kumar. “Effective incremental learning and detector adaptation
methods for video object detection.” 2014. Web. 22 Jan 2021.
Vancouver:
Sharma PK. Effective incremental learning and detector adaptation
methods for video object detection. [Internet] [Doctoral dissertation]. University of Southern California; 2014. [cited 2021 Jan 22].
Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/489008/rec/2189.
Council of Science Editors:
Sharma PK. Effective incremental learning and detector adaptation
methods for video object detection. [Doctoral Dissertation]. University of Southern California; 2014. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/489008/rec/2189

De Montfort University
9.
Shell, Jethro.
Fuzzy transfer learning.
Degree: PhD, 2013, De Montfort University
URL: http://hdl.handle.net/2086/8842
► The use of machine learning to predict output from data, using a model, is a well studied area. There are, however, a number of real-world…
(more)
▼ The use of machine learning to predict output from data, using a model, is a well studied area. There are, however, a number of real-world applications that require a model to be produced but have little or no data available of the specific environment. These situations are prominent in Intelligent Environments (IEs). The sparsity of the data can be a result of the physical nature of the implementation, such as sensors placed into disaster recovery scenarios, or where the focus of the data acquisition is on very defined user groups, in the case of disabled individuals. Standard machine learning approaches focus on a need for training data to come from the same domain. The restrictions of the physical nature of these environments can severely reduce data acquisition making it extremely costly, or in certain situations, impossible. This impedes the ability of these approaches to model the environments. It is this problem, in the area of IEs, that this thesis is focussed. To address complex and uncertain environments, humans have learnt to use previously acquired information to reason and understand their surroundings. Knowledge from different but related domains can be used to aid the ability to learn. For example, the ability to ride a road bicycle can help when acquiring the more sophisticated skills of mountain biking. This humanistic approach to learning can be used to tackle real-world problems where a-priori labelled training data is either difficult or not possible to gain. The transferral of knowledge from a related, but differing context can allow for the reuse and repurpose of known information. In this thesis, a novel composition of methods are brought together that are broadly based on a humanist approach to learning. Two concepts, Transfer Learning (TL) and Fuzzy Logic (FL) are combined in a framework, Fuzzy Transfer Learning (FuzzyTL), to address the problem of learning tasks that have no prior direct contextual knowledge. Through the use of a FL based learning method, uncertainty that is evident in dynamic environments is represented. By combining labelled data from a contextually related source task, and little or no unlabelled data from a target task, the framework is shown to be able to accomplish predictive tasks using models learned from contextually different data. The framework incorporates an additional novel five stage online adaptation process. By adapting the underlying fuzzy structure through the use of previous labelled knowledge and new unlabelled information, an increase in predictive performance is shown. The framework outlined is applied to two differing real-world IEs to demonstrate its ability to predict in uncertain and dynamic environments. Through a series of experiments, it is shown that the framework is capable of predicting output using differing contextual data.
Subjects/Keywords: 006.3; Transfer Learning; fuzzy logic; adaptive; online learning; context; domain adaptation; intelligent environments; sensor networks
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Shell, J. (2013). Fuzzy transfer learning. (Doctoral Dissertation). De Montfort University. Retrieved from http://hdl.handle.net/2086/8842
Chicago Manual of Style (16th Edition):
Shell, Jethro. “Fuzzy transfer learning.” 2013. Doctoral Dissertation, De Montfort University. Accessed January 22, 2021.
http://hdl.handle.net/2086/8842.
MLA Handbook (7th Edition):
Shell, Jethro. “Fuzzy transfer learning.” 2013. Web. 22 Jan 2021.
Vancouver:
Shell J. Fuzzy transfer learning. [Internet] [Doctoral dissertation]. De Montfort University; 2013. [cited 2021 Jan 22].
Available from: http://hdl.handle.net/2086/8842.
Council of Science Editors:
Shell J. Fuzzy transfer learning. [Doctoral Dissertation]. De Montfort University; 2013. Available from: http://hdl.handle.net/2086/8842

Loma Linda University
10.
Lewallen, Andrea.
Linguistic Predictors of Peer Responsiveness in an Online Cancer Support Group.
Degree: PhD, Psychology, 2013, Loma Linda University
URL: https://scholarsrepository.llu.edu/etd/133
► Introduction: Little is known about how group cohesion develops in online support group communities. Previous research suggests that message content, selfdisclosure, and emotional expression may…
(more)
▼ Introduction: Little is known about how group cohesion develops in
online support group communities. Previous research suggests that message content, selfdisclosure, and emotional expression may be central to this process. The purpose of this study was to identify linguistic and qualitative characteristics of participants.' Messages that predict how other participants respond in an asynchronous discussion board for cancer-related distress. Method: 525 discussion board messages posted by 116 participants in the healthspace.net trial were collected. Linguistic Inquiry and Word Count (2001) was used to identify linguistic markers of emotional expression and pronoun use. Message topics were identified using qualitative analysis. Logistic regression and chi-square analyses were used to evaluate whether linguistic characteristics and message topics predicted receiving a response from other survivors in the
online group. Results: Messages were more likely to receive a reply if they had higher word count, OR=1.30, p=.001, or fewer second person pronouns, OR=.923, p=.040. Messages were less likely to receive a reply if they evidenced high levels of positive emotion, OR=.94, p=.03. The most common message topics related to self-disclosure (51%), the group (38.5%), medical experiences (30.9%,), and experiences related to the website (30.1%). Several types of message topics were associated with greater likelihood of a reply: self-disclosure (p<.001), medical experiences (p=.01), relationship issues (p=.05), and introductory posts (p<.01). Implications: Informing participants how to introduce themselves to the group (i.e., detailed and self-focused messages discussing personal issues such as the effects of illness on life and relationships) could promote cohesion and enhance overall intervention engagement.
Advisors/Committee Members: Owen, Jason, Herbozo, Sylvia, Vermeersch, David.
Subjects/Keywords: Clinical Psychology; Online Health Resources; Online Support; Group Processes; Cancer; Neoplasms; Adaptation, Psychological; Social networks; Online cancer support groups; Peer responsiveness; Cancer adjustment and coping; Group cohesion
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lewallen, A. (2013). Linguistic Predictors of Peer Responsiveness in an Online Cancer Support Group. (Doctoral Dissertation). Loma Linda University. Retrieved from https://scholarsrepository.llu.edu/etd/133
Chicago Manual of Style (16th Edition):
Lewallen, Andrea. “Linguistic Predictors of Peer Responsiveness in an Online Cancer Support Group.” 2013. Doctoral Dissertation, Loma Linda University. Accessed January 22, 2021.
https://scholarsrepository.llu.edu/etd/133.
MLA Handbook (7th Edition):
Lewallen, Andrea. “Linguistic Predictors of Peer Responsiveness in an Online Cancer Support Group.” 2013. Web. 22 Jan 2021.
Vancouver:
Lewallen A. Linguistic Predictors of Peer Responsiveness in an Online Cancer Support Group. [Internet] [Doctoral dissertation]. Loma Linda University; 2013. [cited 2021 Jan 22].
Available from: https://scholarsrepository.llu.edu/etd/133.
Council of Science Editors:
Lewallen A. Linguistic Predictors of Peer Responsiveness in an Online Cancer Support Group. [Doctoral Dissertation]. Loma Linda University; 2013. Available from: https://scholarsrepository.llu.edu/etd/133
11.
Hussaan, Aarij.
Generation of Adaptive Pedagogical Scenarios in Serious Games : Génération de scénarios pédagogiques dans les jeux sérieux.
Degree: Docteur es, Informatique, 2012, Université Claude Bernard – Lyon I
URL: http://www.theses.fr/2012LYO10346
► Un serious game est un jeu conçu dans un objectif autre que le seul divertissement. Dans cette thèse, nous nous intéressons à un type particulier…
(more)
▼ Un serious game est un jeu conçu dans un objectif autre que le seul divertissement. Dans cette thèse, nous nous intéressons à un type particulier des jeux sérieux : les jeux d'apprentissage. Il s'agit de jeux qui rendent l'apprentissage plus attractif et amusant à travers des défis ludiques qui suscitent la motivation et l'engagement des apprenants. Dans ce cadre, la problématique de la thèse porte sur la génération automatique des scénarios pédagogiques dans les jeux d'apprentissage. Il s'agit ainsi d'appréhender l'intégration du scénario pédagogique avec le jeu vidéo dans le cadre d'un jeu d'apprentissage. Par scénario pédagogique, nous entendons une suite d'activités pédagogiques, intégrées dans un jeu ludique, permettant à l'apprenant d'atteindre un ou plusieurs objectifs pédagogiques. L'objectif de notre recherche est de définir des modèles de représentation et de raisonnement permettant la génération adaptative de scénarios pédagogiques qui peuvent être utilisés dans des jeux sérieux, en particulier dans les jeux d'apprentissage. Les scénarios ici doivent tenir compte du profil de l'utilisateur, ses objectifs d'apprentissage ainsi que ses traces d'interaction. Ces dernières sont utilisées pour mettre à jour le profil de l'utilisateur et de faire évoluer les connaissances du domaine. Le modèle de représentation de connaissances proposé permet d'organiser les connaissances du domaine dans une architecture à trois couches : concepts du domaine, ressources pédagogiques et ressources du jeu. Pour chacune de ces couches, la thèse propose une formalisation adaptée. Cette organisation générique permet de faire évoluer les éléments d'une couche donnée sans remettre en cause les éléments des autres couches. Egalement, elle permet de mettre en relation les mêmes connaissances du domaine avec différents jeux. Quant au modèle de génération de scénarios, il recense trois étapes successives. Premièrement, à partir du profil de l'utilisateur et de ses objectifs pédagogiques, on génère un scénario conceptuel. Il s'agit de sélectionner un certain nombre de concepts, parmi l'ensemble des concepts de la première couche, permettant de satisfaire les concepts cibles. Ces derniers représentent les objectifs pédagogiques de l'utilisateur. Le scénario conceptuel est ensuite transformé en scénario pédagogique. Pour cela, il s'agit de sélectionner pour chaque concept du scénario conceptuel une ou plusieurs ressources en relation avec celui-ci. Cette sélection tient compte du modèle de présentation et des connaissances d'
adaptation. Le premier permet de structurer les ressources pédagogiques en fonction de leur type. Les connaissances d'
adaptation permettent de fixer le niveau de difficulté pour chaque ressource du scénario pédagogique. La troisième et dernière étape consiste à mettre en relation les ressources du scénario pédagogique avec les ressources de jeux en tenant compte du modèle de jeu. En se basant sur les différents modèles de représentation et de raisonnement proposés, nous avons développé la plate-forme GOALS (Generator Of…
Advisors/Committee Members: Mille, Alain (thesis director), Sehaba, Karim (thesis director).
Subjects/Keywords: Scénario pédagogique; Jeu sérieux; Génération de scénarios; Adaptation; Outil en ligne; Évaluation; Traces; Pedagogical scenario; Serious game; Scenario generation; Adaptation; Online tool; Evaluation; Traces; 004
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hussaan, A. (2012). Generation of Adaptive Pedagogical Scenarios in Serious Games : Génération de scénarios pédagogiques dans les jeux sérieux. (Doctoral Dissertation). Université Claude Bernard – Lyon I. Retrieved from http://www.theses.fr/2012LYO10346
Chicago Manual of Style (16th Edition):
Hussaan, Aarij. “Generation of Adaptive Pedagogical Scenarios in Serious Games : Génération de scénarios pédagogiques dans les jeux sérieux.” 2012. Doctoral Dissertation, Université Claude Bernard – Lyon I. Accessed January 22, 2021.
http://www.theses.fr/2012LYO10346.
MLA Handbook (7th Edition):
Hussaan, Aarij. “Generation of Adaptive Pedagogical Scenarios in Serious Games : Génération de scénarios pédagogiques dans les jeux sérieux.” 2012. Web. 22 Jan 2021.
Vancouver:
Hussaan A. Generation of Adaptive Pedagogical Scenarios in Serious Games : Génération de scénarios pédagogiques dans les jeux sérieux. [Internet] [Doctoral dissertation]. Université Claude Bernard – Lyon I; 2012. [cited 2021 Jan 22].
Available from: http://www.theses.fr/2012LYO10346.
Council of Science Editors:
Hussaan A. Generation of Adaptive Pedagogical Scenarios in Serious Games : Génération de scénarios pédagogiques dans les jeux sérieux. [Doctoral Dissertation]. Université Claude Bernard – Lyon I; 2012. Available from: http://www.theses.fr/2012LYO10346

Penn State University
12.
Shabbott, Britne Anne.
The Contributions of Visual Information to Reaching Behaviors.
Degree: 2009, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/9504
► Vision is one of the more salient sources of information that contributes to both the planning and the execution of many reaching behaviors. In fact,…
(more)
▼ Vision is one of the more salient sources of information that contributes to both the planning and the execution of many reaching behaviors. In fact, the contributions of vision to reaching accuracy were first described over a century ago in a seminal monograph by Woodworth (1899), which differentiated between the use of vision for planning and for on-line corrections. Today, this distinction remains a central issue in the study of sensory contributions to movement. Some evidence has suggested that the differences in performance between limbs results from specialization of the dominant hemisphere for visual-mediated correction processes, although results from empirical studies are inconsistent. Additionally, the way in which visual information is used for planning and on-line corrections, within a limb, remains largely unknown. Thus, the experiments presented in this dissertation were designed to 1) determine whether handedness emerges as a result of more efficient or faster visual feedback processing in the dominant hemisphere, 2) examine what aspects of visual error information mediate on-line corrections within a limb, and 3) investigate how sensory information that is detected during the course of motion is used to update planning of subsequent movements, as occurs during visual-motor
adaptation. The results of these experiments revealed that dominant arm performance advantages during reaching are not dependent on visual-mediated correction processes, but instead reflect the predictions of the “dynamic dominance” hypothesis. This hypothesis proposes that the non-dominant and dominant limb/hemisphere systems have become specialized for controlling limb impedance and task dynamics, respectively. We also provide evidence that visual-based corrections that occur within- and between-trials are qualitatively different, and thus, use visual information differently. However, sensory information provided within-trials was shown to be crucial for visuomotor
adaptation. Collectively, the results of these studies improve our understanding of how visual information is used during reaching behaviors, which may have implications for neural disorders and disease.
Advisors/Committee Members: Robert L Sainburg, Dissertation Advisor/Co-Advisor, Robert L Sainburg, Committee Chair/Co-Chair, Dagmar Sternad, Committee Member, Byron C Jones, Committee Member, Jinger Gottschall, Committee Member, Jonathan T Mordkoff, Committee Member.
Subjects/Keywords: motor control; visuomotor adaptation; movement; handedness; online control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Shabbott, B. A. (2009). The Contributions of Visual Information to Reaching Behaviors. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/9504
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Shabbott, Britne Anne. “The Contributions of Visual Information to Reaching Behaviors.” 2009. Thesis, Penn State University. Accessed January 22, 2021.
https://submit-etda.libraries.psu.edu/catalog/9504.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Shabbott, Britne Anne. “The Contributions of Visual Information to Reaching Behaviors.” 2009. Web. 22 Jan 2021.
Vancouver:
Shabbott BA. The Contributions of Visual Information to Reaching Behaviors. [Internet] [Thesis]. Penn State University; 2009. [cited 2021 Jan 22].
Available from: https://submit-etda.libraries.psu.edu/catalog/9504.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Shabbott BA. The Contributions of Visual Information to Reaching Behaviors. [Thesis]. Penn State University; 2009. Available from: https://submit-etda.libraries.psu.edu/catalog/9504
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Ottawa
13.
Wijeyaratnam, Darrin.
Online and Offline Contributions in Adapted Movements
.
Degree: 2018, University of Ottawa
URL: http://hdl.handle.net/10393/38106
► Human movements are remarkably adaptive, such that we are capable of completing movements in a novel environment with similar accuracy to those performed in a…
(more)
▼ Human movements are remarkably adaptive, such that we are capable of completing movements in a novel environment with similar accuracy to those performed in a typical environment. Our ability to perform in these environments involves accurate processing of sensory feedback for online and offline control. These processes of control have been widely studied for well learned actions, but not for actions in a novel visuomotor environment. In two experiments, we examined control processes underlying reaches when participants were first introduced to a visuomotor rotation (Experiment 1) and then following visuomotor adaptation (Experiment 2). All participants completed 150 reach training trials when (1) a cursor accurately represented their hand motion (i.e., aligned cursor) and (2) a cursor was rotated 45 degrees clockwise relative to their hand motion (i.e., rotated cursor). In Experiment 1, we sought to determine if the control processes underlying movements in typical and novel visuomotor conditions were comparable. Participants (n = 16) received either continuous visual feedback or terminal visual feedback regarding movement endpoint during reach training. Analyses revealed that participants were able to demonstrate similar outcomes (i.e., movement time and endpoint errors) regardless of visual or cursor feedback, but also demonstrated more offline control (i.e., took more time planning and were less consistent in initiating their movements) when reaching with a rotated cursor compared to an aligned cursor, even at the end of training. Together, the results suggest a greater contribution of offline control processes and less effective online corrective processes when reaching in a novel environment compared to when reaching in a typical environment. In attempt to promote online corrective processes, participants (n = 16) in Experiment 2 first completed the training trials with continuous visual feedback and then completed an additional 45 reaches under (1) slow movement time (i.e., Slow MT: 800-1000 ms) and (2) fast movement time (i.e., Fast MT: 400-500ms) constraints. Results showed a shift to online control (i.e., greater endpoint accuracy) when reaching with an aligned and rotated cursor, when sufficiently more time was provided (i.e., Slow MT). Specifically, participants were able to more effectively utilize visual feedback for online control under the Slow MT constraint compared to when reaching quickly (i.e., Fast MT). Together, these experiments demonstrate a flexibility in control processes underlying reaches with rotated visual feedback of the hand. In that reaches first engage in offline control processes during adaptation to a visuomotor rotation, and then shift to online corrective processes following visuomotor adaptation.
Subjects/Keywords: Reaching;
Visuomotor adaptation;
Visual feedback;
Kinematic analysis;
Movement control;
Online control;
Offline control;
Speed-accuracy trade-off
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Wijeyaratnam, D. (2018). Online and Offline Contributions in Adapted Movements
. (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/38106
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wijeyaratnam, Darrin. “Online and Offline Contributions in Adapted Movements
.” 2018. Thesis, University of Ottawa. Accessed January 22, 2021.
http://hdl.handle.net/10393/38106.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wijeyaratnam, Darrin. “Online and Offline Contributions in Adapted Movements
.” 2018. Web. 22 Jan 2021.
Vancouver:
Wijeyaratnam D. Online and Offline Contributions in Adapted Movements
. [Internet] [Thesis]. University of Ottawa; 2018. [cited 2021 Jan 22].
Available from: http://hdl.handle.net/10393/38106.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wijeyaratnam D. Online and Offline Contributions in Adapted Movements
. [Thesis]. University of Ottawa; 2018. Available from: http://hdl.handle.net/10393/38106
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Arkansas
14.
Wu, Chen Wei.
Chinese International Students' Cross-cultural Adaptation and Online Communication.
Degree: MA, 2012, University of Arkansas
URL: https://scholarworks.uark.edu/etd/398
► This study explored Chinese international students' computer mediated communication with both Americans and Chinese during their studying in the U.S. based on a Cross-Cultural…
(more)
▼ This study explored Chinese international students' computer mediated communication with both Americans and Chinese during their studying in the U.S. based on a Cross-Cultural
Adaptation theory. The specific purpose of this study was to test five theorems of the theory with a sample of Chinese international students and to explore how Chinese international students' intercultural transformation, adaptive personality, host communication competence, and their interpersonal and mass communication with both host and ethnic groups associate together.
Advisors/Committee Members: Myria W. Allen, Lynne M. Webb, Ron Warren.
Subjects/Keywords: Communication and the arts; Adaptation; Chinese; Communication; Cross-cultural; Online; Chinese Studies; International and Intercultural Communication; Mass Communication
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Wu, C. W. (2012). Chinese International Students' Cross-cultural Adaptation and Online Communication. (Masters Thesis). University of Arkansas. Retrieved from https://scholarworks.uark.edu/etd/398
Chicago Manual of Style (16th Edition):
Wu, Chen Wei. “Chinese International Students' Cross-cultural Adaptation and Online Communication.” 2012. Masters Thesis, University of Arkansas. Accessed January 22, 2021.
https://scholarworks.uark.edu/etd/398.
MLA Handbook (7th Edition):
Wu, Chen Wei. “Chinese International Students' Cross-cultural Adaptation and Online Communication.” 2012. Web. 22 Jan 2021.
Vancouver:
Wu CW. Chinese International Students' Cross-cultural Adaptation and Online Communication. [Internet] [Masters thesis]. University of Arkansas; 2012. [cited 2021 Jan 22].
Available from: https://scholarworks.uark.edu/etd/398.
Council of Science Editors:
Wu CW. Chinese International Students' Cross-cultural Adaptation and Online Communication. [Masters Thesis]. University of Arkansas; 2012. Available from: https://scholarworks.uark.edu/etd/398

NSYSU
15.
Liu, Chiang-Luan.
The Study of Applying Category Management on Adaptive Customer-centered Online Catalogs.
Degree: Master, Information Management, 2001, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0626101-145328
► The Internet with growing electronic commerce is regarded as a new selling channel for retailers. Online catalog organization has become an important issue for e-tailing…
(more)
▼ The Internet with growing electronic commerce is regarded as
a new selling channel for retailers.
Online catalog organization has
become an important issue for e-tailing business development.
While most
online retailing web sites provide assistance for
searchers who know exactly what they are seeking, little has been
done to aid browsers who take a more open-minded and
exploratory approach to navigation. Good design of
online catalogs
is essential for browsers to shop over the web.
In this paper, we propose a two-phase approach to the design
of
online catalogs. In the first phase, the idea of category
management that analyzes customersâ purchasing behaviors is
employed to construct a customer-centered
online catalog.
Cluster-based market segmentation helps determine the web
hierarchy with clusters of products in higher levels indicating more
interesting to customers. The second phase is to dynamically adjust
the hierarchy when customersâ preference indicated by browsing
patterns is changed.'Relative access' that reflects the popularity of
web pages is used as a basis to make
online catalog
adaptation.
Finally, we apply this approach to real-world data collected at
Galleze.com by Blue Martini Software. It shows that our approach
can result in meaningful
online catalog organization for customers
to navigate. Our study therefore provides a good direction for
researchers in designing
online catalogs. Furthermore, e-tailing
practitioners can apply our approach easily and gain benefits from
such a design.
Advisors/Committee Members: Te-min Chang (committee member), Fu-ren Lin (chair), Chin-Fu Ho (chair).
Subjects/Keywords: Online Category Management; Online Catalog; Electronic Commerce; Market Segmentation; Adaptation of Web Page
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Liu, C. (2001). The Study of Applying Category Management on Adaptive Customer-centered Online Catalogs. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0626101-145328
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Liu, Chiang-Luan. “The Study of Applying Category Management on Adaptive Customer-centered Online Catalogs.” 2001. Thesis, NSYSU. Accessed January 22, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0626101-145328.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Liu, Chiang-Luan. “The Study of Applying Category Management on Adaptive Customer-centered Online Catalogs.” 2001. Web. 22 Jan 2021.
Vancouver:
Liu C. The Study of Applying Category Management on Adaptive Customer-centered Online Catalogs. [Internet] [Thesis]. NSYSU; 2001. [cited 2021 Jan 22].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0626101-145328.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Liu C. The Study of Applying Category Management on Adaptive Customer-centered Online Catalogs. [Thesis]. NSYSU; 2001. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0626101-145328
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Luleå University of Technology
16.
Momeni, Mohammad Hossein.
Factors Influencing the Adoption of Internet Apparel Shopping.
Degree: 2015, Luleå University of Technology
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-51382
► This thesis attempts to analyze the factors that affect the behavioral intentiontowards purchasing apparels through the Internet. A combination of TechnologyAcceptance Model and Theory…
(more)
▼ This thesis attempts to analyze the factors that affect the behavioral intentiontowards purchasing apparels through the Internet. A combination of TechnologyAcceptance Model and Theory of Planned Behavior along with constructs of Trustand Perceived Risk was chosen as the basis of framework for this study to explainhow online consumers behave while purchasing garments online and to illustrate thestrength of the relationship between consumers intention and constructs of attitude,Perceived Usefulness, Perceived Ease of Use, Subjective Norms, PerceivedBehavioral Control, Perceived Risk, and Trust. A pilot study along with severalinterviews was conducted to create a basis for the final questionnaire, which led to thedata gathered from 347 people of Iranian society. The measures and hypotheses wereanalyzed using Multiple Regression analysis. Results demonstrated crucial effect ofvariables such as social factors, Perceived Behavioral Control, Attitude, PerceivedRisk, and Trust on people’s behavioral intention towards shopping garments online.Furthermore, the implications of the findings for theory and practice are discussed andrelevant conclusions have been mentioned.
Validerat; 20150827 (marikav)
Subjects/Keywords: Social Behaviour Law; E-Commerce; adaptation of information technology; Online shopping; technology acceptance model; theory of planned behavior; trust; perceived risk; online fashion industry; Samhälls-; beteendevetenskap; juridik
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Momeni, M. H. (2015). Factors Influencing the Adoption of Internet Apparel Shopping. (Thesis). Luleå University of Technology. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-51382
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Momeni, Mohammad Hossein. “Factors Influencing the Adoption of Internet Apparel Shopping.” 2015. Thesis, Luleå University of Technology. Accessed January 22, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-51382.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Momeni, Mohammad Hossein. “Factors Influencing the Adoption of Internet Apparel Shopping.” 2015. Web. 22 Jan 2021.
Vancouver:
Momeni MH. Factors Influencing the Adoption of Internet Apparel Shopping. [Internet] [Thesis]. Luleå University of Technology; 2015. [cited 2021 Jan 22].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-51382.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Momeni MH. Factors Influencing the Adoption of Internet Apparel Shopping. [Thesis]. Luleå University of Technology; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-51382
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
17.
Apostolidou, Anna.
Σχεδιασμός και εφαρμογή πολιτισμικά προσαρμοσμένων προγραμμάτων εξ αποστάσεως εκπαίδευσης για ενήλικες πρόσφυγες.
Degree: 2019, Hellenic Open University; Ελληνικό Ανοικτό Πανεπιστήμιο (ΕΑΠ)
URL: http://hdl.handle.net/10442/hedi/45768
► The thesis addresses the epistemological, pedagogical and technological issues that arise in processes of developing models of culturally adapting educational content for the needs of…
(more)
▼ The thesis addresses the epistemological, pedagogical and technological issues that arise in processes of developing models of culturally adapting educational content for the needs of adult refugees who partake in distance learning modules. Taking into account the special social and material conditions of the target-population, it examines the cultural, technological and pedagogical parameters that come into the design and implementation of an online program of study for persons with a refugee background. It also proposes certain approaches to educational design and content, as well as the adoption of innovative supportive practices which promote the educational integration of adult refugees, especially with reference to tertiary distance learning in Europe. The creation of the CAROL model (Cultural Adaptation for Refugee Online Learning) was based on qualitative research methodology, which combined the development of a prototype with in-depth ethnographic techniques, thus converging the perspectives of social anthropology and distance learning. Namely, authentic educational content and an online platform were developed and empirically tested (through the use of an online questionnaire, semi-structured interviews and discussion/focus-groups) in order to identify the design and implementation parameters of a culturally adapted modality of study. The thesis offers empirical observations and future recommendations for the application of the model, and similar such approaches, to refugee education.
Η διατριβή πραγματεύεται τα επιστημονικά, παιδαγωγικά και τεχνολογικά ζητήματα που ανακύπτουν στη διαδικασία ανάπτυξης ενός μοντέλου για αξιόπιστη προσαρμογή υπάρχοντος εκπαιδευτικού περιεχομένου που να ανταποκρίνεται στις ανάγκες ενήλικων προσφύγων σε πλαίσιο εξ αποστάσεως μάθησης. Λαμβάνοντας υπόψη τις ειδικές κοινωνικές συνθήκες του πληθυσμού-στόχου, εξετάζει τις πολιτισμικές, τεχνολογικές και σχεδιαστικές παραμέτρους που υπεισέρχονται στον σχεδιασμό και τη διάρθρωση εξ αποστάσεως προγραμμάτων σπουδών για άτομα με προσφυγικό υπόβαθρο και προτείνει προσεγγίσεις προσαρμογής του εκπαιδευτικού υλικού και υιοθέτησης καινοτόμων υποστηρικτικών πρακτικών για την ενσωμάτωση και παραμονή των εκπαιδευόμενων στην εξ αποστάσεως τριτοβάθμια εκπαίδευση στην Ευρώπη.Η συγκρότηση του μοντέλου CAROL (Cultural Adaptation for Refugee Online Learning), το οποίο προκύπτει από τη συγκεκριμένη έρευνα, στηρίχθηκε σε μεθοδολογία ποιοτικής μελέτης που περιλαμβάνει: α) την ανάπτυξη πρότυπου εκπαιδευτικού υλικού και ψηφιακού περιβάλλοντος σε δύο γλώσσες (αραβικά και φαρσί)∙ β) την εκπαιδευτική εφαρμογή σε επιλεγμένο δείγμα ενήλικων προσφύγων∙ και γ) την εις βάθος ποιοτική διερεύνηση και αποτίμηση των παραμέτρων σχεδιασμού και εφαρμογής του πολιτισμικά προσαρμοσμένου προγράμματος σπουδών. Η προσέγγιση της μελέτης επιχειρεί έναν συγκερασμό του πρίσματος της κοινωνικής ανθρωπολογίας και της εξ αποστάσεως εκπαίδευσης, τόσο σε επιστημολογικό όσο και σε μεθοδολογικό επίπεδο. Τα συμπεράσματα που προκύπτουν προσφέρουν μια σειρά από καίριες παρατηρήσεις για…
Subjects/Keywords: Πολιτισμική προσαρμογή; Εκπαίδευση προσφύγων; Ηλεκτρονική μάθηση; Κοινωνική ανθρωπολογία; Ανοικτή και εξ αποστάσεως εκπαίδευση; Cultural adaptation; Refugee education; Online learning; Social anthropology; Distance learning
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Apostolidou, A. (2019). Σχεδιασμός και εφαρμογή πολιτισμικά προσαρμοσμένων προγραμμάτων εξ αποστάσεως εκπαίδευσης για ενήλικες πρόσφυγες. (Thesis). Hellenic Open University; Ελληνικό Ανοικτό Πανεπιστήμιο (ΕΑΠ). Retrieved from http://hdl.handle.net/10442/hedi/45768
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Apostolidou, Anna. “Σχεδιασμός και εφαρμογή πολιτισμικά προσαρμοσμένων προγραμμάτων εξ αποστάσεως εκπαίδευσης για ενήλικες πρόσφυγες.” 2019. Thesis, Hellenic Open University; Ελληνικό Ανοικτό Πανεπιστήμιο (ΕΑΠ). Accessed January 22, 2021.
http://hdl.handle.net/10442/hedi/45768.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Apostolidou, Anna. “Σχεδιασμός και εφαρμογή πολιτισμικά προσαρμοσμένων προγραμμάτων εξ αποστάσεως εκπαίδευσης για ενήλικες πρόσφυγες.” 2019. Web. 22 Jan 2021.
Vancouver:
Apostolidou A. Σχεδιασμός και εφαρμογή πολιτισμικά προσαρμοσμένων προγραμμάτων εξ αποστάσεως εκπαίδευσης για ενήλικες πρόσφυγες. [Internet] [Thesis]. Hellenic Open University; Ελληνικό Ανοικτό Πανεπιστήμιο (ΕΑΠ); 2019. [cited 2021 Jan 22].
Available from: http://hdl.handle.net/10442/hedi/45768.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Apostolidou A. Σχεδιασμός και εφαρμογή πολιτισμικά προσαρμοσμένων προγραμμάτων εξ αποστάσεως εκπαίδευσης για ενήλικες πρόσφυγες. [Thesis]. Hellenic Open University; Ελληνικό Ανοικτό Πανεπιστήμιο (ΕΑΠ); 2019. Available from: http://hdl.handle.net/10442/hedi/45768
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
18.
Kontaxis, Charis.
Towards real-time plan adaptation for MRI-guided radiotherapy.
Degree: 2017, University Utrecht
URL: http://dspace.library.uu.nl/handle/1874/357190
;
URN:NBN:NL:UI:10-1874-357190
;
urn:isbn:978-90-393-6901-2
;
URN:NBN:NL:UI:10-1874-357190
;
http://dspace.library.uu.nl/handle/1874/357190
► The introduction of hybrid MRI and linear accelerator (MRI-linac) machines enables the online volumetric imaging during radiation delivery with the superior soft tissue contrast of…
(more)
▼ The introduction of hybrid MRI and linear accelerator (MRI-linac) machines enables the
online volumetric imaging during radiation delivery with the superior soft tissue contrast of the diagnostic quality MRI. In this context, conventional radiotherapy workflow will gradually transfer from an offline to an
online setting, where in every treatment fraction radiation will be adapted on-the-fly to the changing anatomy of the patient. A new generation of planning systems is therefore needed for
online plan
adaptation based on the MRI-derived position and motion data. This work formulates the requirements for such a system and proposes a new sequencing methodology to facilitate fast
online replanning along with indicative inter- and intrafraction adaptive applications. The newly developed Adaptive Sequencer (ASEQ), is able to incorporate anatomical changes into the IMRT planning process, essentially allowing the successful optimization and delivery of a static clinical prescription on a dynamic patient anatomy. ASEQ is an iterative process which gradually converges to an input prescribed dose. Each iteration produces unique segments which target the latest patient anatomy. By coupling ASEQ to a Segment Weight Optimization (SWO) in a conventional static environment, we show that valid clinical plans can be generated for multiple treatment sites. Furthermore we demonstrate that by omitting SWO, and instead transferring any missing/excess dose in a voxel-by-voxel basis to the next fraction's prescription (Inter-Fraction Scheme (IFS)), the intended dose can be successfully delivered enabling the non-deterministic plan
adaptation during treatment. We then demonstrate that ASEQ can be utilized for intrafraction plan
adaptation based on 3D anatomical deformations in kidney cases with artificially induced baseline shifts. In both single and multifraction treatments ASEQ converges to the prescribed dose and spares the surrounding structures outside of the target region, by generating segments that target the different instances of the moving patient anatomy. By reimplementing ASEQ to facilitate very fast applications we showcase inter- and intrafraction adaptive treatments for the current and future MRI-guided clinic. We present a daily replanning application for rotational correction in prostate radiotherapy based on implanted fiducial markers. The inclusion of the daily recorded prostate rigid transformations into fast
online replanning leads to consistent target coverage and OAR high dose exposure. This in turn enables the reduction of the planning margins and thus further healthy tissue sparing. Finally, we present a single fraction SBRT treatment based on 3D deformations calculated from
online MR data for renal tumours. The MRI pipeline includes a pre-beam 4DMRI and multiple sets of orthogonal 2D-cine MR images acquired during the beam-on phase which are processed by a statistical motion model to produce high frequency 3D deformation vector fields along with their corresponding volumes. We simulate fast inter-beam replanning…
Advisors/Committee Members: Raaymakers, Bas W., Lagendijk, JJW, Bol, GH.
Subjects/Keywords: treatment plan adaptation; online replanning; real-time; MRI-guidance; MRI-linac; IMRT; radiotherapy
Record Details
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Share »
Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kontaxis, C. (2017). Towards real-time plan adaptation for MRI-guided radiotherapy. (Doctoral Dissertation). University Utrecht. Retrieved from http://dspace.library.uu.nl/handle/1874/357190 ; URN:NBN:NL:UI:10-1874-357190 ; urn:isbn:978-90-393-6901-2 ; URN:NBN:NL:UI:10-1874-357190 ; http://dspace.library.uu.nl/handle/1874/357190
Chicago Manual of Style (16th Edition):
Kontaxis, Charis. “Towards real-time plan adaptation for MRI-guided radiotherapy.” 2017. Doctoral Dissertation, University Utrecht. Accessed January 22, 2021.
http://dspace.library.uu.nl/handle/1874/357190 ; URN:NBN:NL:UI:10-1874-357190 ; urn:isbn:978-90-393-6901-2 ; URN:NBN:NL:UI:10-1874-357190 ; http://dspace.library.uu.nl/handle/1874/357190.
MLA Handbook (7th Edition):
Kontaxis, Charis. “Towards real-time plan adaptation for MRI-guided radiotherapy.” 2017. Web. 22 Jan 2021.
Vancouver:
Kontaxis C. Towards real-time plan adaptation for MRI-guided radiotherapy. [Internet] [Doctoral dissertation]. University Utrecht; 2017. [cited 2021 Jan 22].
Available from: http://dspace.library.uu.nl/handle/1874/357190 ; URN:NBN:NL:UI:10-1874-357190 ; urn:isbn:978-90-393-6901-2 ; URN:NBN:NL:UI:10-1874-357190 ; http://dspace.library.uu.nl/handle/1874/357190.
Council of Science Editors:
Kontaxis C. Towards real-time plan adaptation for MRI-guided radiotherapy. [Doctoral Dissertation]. University Utrecht; 2017. Available from: http://dspace.library.uu.nl/handle/1874/357190 ; URN:NBN:NL:UI:10-1874-357190 ; urn:isbn:978-90-393-6901-2 ; URN:NBN:NL:UI:10-1874-357190 ; http://dspace.library.uu.nl/handle/1874/357190
19.
Kontaxis, Charis.
Towards real-time plan adaptation for MRI-guided radiotherapy.
Degree: 2017, University Utrecht
URL: https://dspace.library.uu.nl/handle/1874/357190
;
URN:NBN:NL:UI:10-1874-357190
;
urn:isbn:978-90-393-6901-2
;
URN:NBN:NL:UI:10-1874-357190
;
https://dspace.library.uu.nl/handle/1874/357190
► The introduction of hybrid MRI and linear accelerator (MRI-linac) machines enables the online volumetric imaging during radiation delivery with the superior soft tissue contrast of…
(more)
▼ The introduction of hybrid MRI and linear accelerator (MRI-linac) machines enables the
online volumetric imaging during radiation delivery with the superior soft tissue contrast of the diagnostic quality MRI. In this context, conventional radiotherapy workflow will gradually transfer from an offline to an
online setting, where in every treatment fraction radiation will be adapted on-the-fly to the changing anatomy of the patient. A new generation of planning systems is therefore needed for
online plan
adaptation based on the MRI-derived position and motion data. This work formulates the requirements for such a system and proposes a new sequencing methodology to facilitate fast
online replanning along with indicative inter- and intrafraction adaptive applications. The newly developed Adaptive Sequencer (ASEQ), is able to incorporate anatomical changes into the IMRT planning process, essentially allowing the successful optimization and delivery of a static clinical prescription on a dynamic patient anatomy. ASEQ is an iterative process which gradually converges to an input prescribed dose. Each iteration produces unique segments which target the latest patient anatomy. By coupling ASEQ to a Segment Weight Optimization (SWO) in a conventional static environment, we show that valid clinical plans can be generated for multiple treatment sites. Furthermore we demonstrate that by omitting SWO, and instead transferring any missing/excess dose in a voxel-by-voxel basis to the next fraction's prescription (Inter-Fraction Scheme (IFS)), the intended dose can be successfully delivered enabling the non-deterministic plan
adaptation during treatment. We then demonstrate that ASEQ can be utilized for intrafraction plan
adaptation based on 3D anatomical deformations in kidney cases with artificially induced baseline shifts. In both single and multifraction treatments ASEQ converges to the prescribed dose and spares the surrounding structures outside of the target region, by generating segments that target the different instances of the moving patient anatomy. By reimplementing ASEQ to facilitate very fast applications we showcase inter- and intrafraction adaptive treatments for the current and future MRI-guided clinic. We present a daily replanning application for rotational correction in prostate radiotherapy based on implanted fiducial markers. The inclusion of the daily recorded prostate rigid transformations into fast
online replanning leads to consistent target coverage and OAR high dose exposure. This in turn enables the reduction of the planning margins and thus further healthy tissue sparing. Finally, we present a single fraction SBRT treatment based on 3D deformations calculated from
online MR data for renal tumours. The MRI pipeline includes a pre-beam 4DMRI and multiple sets of orthogonal 2D-cine MR images acquired during the beam-on phase which are processed by a statistical motion model to produce high frequency 3D deformation vector fields along with their corresponding volumes. We simulate fast inter-beam replanning…
Advisors/Committee Members: Raaymakers, Bas W., Lagendijk, JJW, Bol, GH.
Subjects/Keywords: treatment plan adaptation; online replanning; real-time; MRI-guidance; MRI-linac; IMRT; radiotherapy
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share





❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kontaxis, C. (2017). Towards real-time plan adaptation for MRI-guided radiotherapy. (Doctoral Dissertation). University Utrecht. Retrieved from https://dspace.library.uu.nl/handle/1874/357190 ; URN:NBN:NL:UI:10-1874-357190 ; urn:isbn:978-90-393-6901-2 ; URN:NBN:NL:UI:10-1874-357190 ; https://dspace.library.uu.nl/handle/1874/357190
Chicago Manual of Style (16th Edition):
Kontaxis, Charis. “Towards real-time plan adaptation for MRI-guided radiotherapy.” 2017. Doctoral Dissertation, University Utrecht. Accessed January 22, 2021.
https://dspace.library.uu.nl/handle/1874/357190 ; URN:NBN:NL:UI:10-1874-357190 ; urn:isbn:978-90-393-6901-2 ; URN:NBN:NL:UI:10-1874-357190 ; https://dspace.library.uu.nl/handle/1874/357190.
MLA Handbook (7th Edition):
Kontaxis, Charis. “Towards real-time plan adaptation for MRI-guided radiotherapy.” 2017. Web. 22 Jan 2021.
Vancouver:
Kontaxis C. Towards real-time plan adaptation for MRI-guided radiotherapy. [Internet] [Doctoral dissertation]. University Utrecht; 2017. [cited 2021 Jan 22].
Available from: https://dspace.library.uu.nl/handle/1874/357190 ; URN:NBN:NL:UI:10-1874-357190 ; urn:isbn:978-90-393-6901-2 ; URN:NBN:NL:UI:10-1874-357190 ; https://dspace.library.uu.nl/handle/1874/357190.
Council of Science Editors:
Kontaxis C. Towards real-time plan adaptation for MRI-guided radiotherapy. [Doctoral Dissertation]. University Utrecht; 2017. Available from: https://dspace.library.uu.nl/handle/1874/357190 ; URN:NBN:NL:UI:10-1874-357190 ; urn:isbn:978-90-393-6901-2 ; URN:NBN:NL:UI:10-1874-357190 ; https://dspace.library.uu.nl/handle/1874/357190
20.
Li, Zhongliang.
Data-driven fault diagnosis for PEMFC systems : Integrating representation and classification methods for obstacle detection in road scenes.
Degree: Docteur es, Automatique, 2014, Aix Marseille Université
URL: http://www.theses.fr/2014AIXM4335
► Cette thèse est consacrée à l'étude de diagnostic de pannes pour les systèmes pile à combustible de type PEMFC. Le but est d'améliorer la fiabilité…
(more)
▼ Cette thèse est consacrée à l'étude de diagnostic de pannes pour les systèmes pile à combustible de type PEMFC. Le but est d'améliorer la fiabilité et la durabilité de la membrane électrolyte polymère afin de promouvoir la commercialisation de la technologie des piles à combustible. Les approches explorées dans cette thèse sont celles du diagnostic guidé par les données. Les techniques basées sur la reconnaissance de forme sont les plus utilisées. Dans ce travail, les variables considérées sont les tensions des cellules. Les résultats établis dans le cadre de la thèse peuvent être regroupés en trois contributions principales.La première contribution est constituée d'une étude comparative. Plus précisément, plusieurs méthodes sont explorées puis comparées en vue de déterminer une stratégie précise et offrant un coût de calcul optimal.La deuxième contribution concerne le diagnostic online sans connaissance complète des défauts au préalable. Il s'agit d'une technique adaptative qui permet d'appréhender l'apparition de nouveaux types de défauts. Cette technique est fondée sur la méthodologie SSM-SVM et les règles de détection et de localisation ont été améliorées pour répondre au problème du diagnostic en temps réel.La troisième contribution est obtenue à partir méthodologie fondée sur l'utilisation partielle de modèles dynamiques. Le principe de détection et localisation de défauts est fondé sur des techniques d'identification et sur la génération de résidus directement à partir des données d'exploitation.Toutes les stratégies proposées dans le cadre de la thèse ont été testées à travers des données expérimentales et validées sur un système embarqué.
Aiming at improving the reliability and durability of Polymer Electrolyte Membrane Fuel Cell (PEMFC) systems and promote the commercialization of fuel cell technologies, this thesis work is dedicated to the fault diagnosis study for PEMFC systems. Data-driven fault diagnosis is the main focus in this thesis. As a main branch of data-driven fault diagnosis, the methods based on pattern classification techniques are firstly studied. Taking individual fuel cell voltages as original diagnosis variables, several representative methodologies are investigated and compared from the perspective of online implementation.Specific to the defects of conventional classification based diagnosis methods, a novel diagnosis strategy is proposed. A new classifier named Sphere-Shaped Multi-class Support Vector Machine (SSM-SVM) and modified diagnostic rules are utilized to realize the novel fault recognition. While an incremental learning method is extended to achieve the online adaptation.Apart from the classification based diagnosis approach, a so-called partial model-based data-driven approach is introduced to handle PEMFC diagnosis in dynamic processes. With the aid of a subspace identification method (SIM), the model-based residual generation is designed directly from the normal and dynamic operating data. Then, fault detection and isolation are further realized by evaluating the…
Advisors/Committee Members: Outbib, Rachid (thesis director), Giurgea, Stefan (thesis director), Hissel, Daniel (thesis director).
Subjects/Keywords: Système PEMFC; Diagnostic en ligne; Des tensions cellulaires; Reconnaissance de forme; La précision du diagnostic; Le coût de calcul; Systèmes embarqués; La détection des défauts roman; Adaptation en ligne; L'identification du modèle; PEMFC system; Online diagnosis; Cell voltages; Pattern classification; Diagnosis accuracy; Computational cost; Embedded system; Novel fault detection; Online adaptation; Model identification
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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APA (6th Edition):
Li, Z. (2014). Data-driven fault diagnosis for PEMFC systems : Integrating representation and classification methods for obstacle detection in road scenes. (Doctoral Dissertation). Aix Marseille Université. Retrieved from http://www.theses.fr/2014AIXM4335
Chicago Manual of Style (16th Edition):
Li, Zhongliang. “Data-driven fault diagnosis for PEMFC systems : Integrating representation and classification methods for obstacle detection in road scenes.” 2014. Doctoral Dissertation, Aix Marseille Université. Accessed January 22, 2021.
http://www.theses.fr/2014AIXM4335.
MLA Handbook (7th Edition):
Li, Zhongliang. “Data-driven fault diagnosis for PEMFC systems : Integrating representation and classification methods for obstacle detection in road scenes.” 2014. Web. 22 Jan 2021.
Vancouver:
Li Z. Data-driven fault diagnosis for PEMFC systems : Integrating representation and classification methods for obstacle detection in road scenes. [Internet] [Doctoral dissertation]. Aix Marseille Université 2014. [cited 2021 Jan 22].
Available from: http://www.theses.fr/2014AIXM4335.
Council of Science Editors:
Li Z. Data-driven fault diagnosis for PEMFC systems : Integrating representation and classification methods for obstacle detection in road scenes. [Doctoral Dissertation]. Aix Marseille Université 2014. Available from: http://www.theses.fr/2014AIXM4335
21.
Tatsis, Vasileios.
Online parameter adaptation methods for population-based metaheurisistics.
Degree: 2019, University of Ioannina; Πανεπιστήμιο Ιωαννίνων
URL: http://hdl.handle.net/10442/hedi/46285
► Optimization problems lie in the core of scientific and technological development. They appear inalmost every decision-making process, under various types and forms. A multitude of…
(more)
▼ Optimization problems lie in the core of scientific and technological development. They appear inalmost every decision-making process, under various types and forms. A multitude of algorithms have been proposed in relevant literature to solve optimization problems. However, theoretical evidence suggests that the development of an overall optimal algorithm is impossible. For this reason, problemspecific optimization algorithms have been developed, incorporating a variety of features and ad hoc operations that exploit specific properties of the corresponding optimization problem. Typically, optimization algorithms have control parameters that adjust their dynamic with critical impact on their performance. Thus, proper parameter tuning becomes the cornerstone of efficient problem solving. There is a continuous line of research on parameter tuning methods since the early development of optimization algorithms. The majority of these methods addresses the tuning problem offline, i.e., prior to the algorithm’s execution. Established offline methods are based on statistical methodologies to identify promising parameter configurations, and their results may be reusable in problems of similar type. However, they neglect the algorithm’s feed- back and performance fluctuations during its run. The alternative approach is the use of online methods that dynamically adapt the parameters during the algorithm’s run. These methods exploit real-time performance data and, hence, they can make informative decisions on the parameter adaptation. This usually comes at the cost of non-reusable decisions. The main goal of the present thesis is the development of new online parameter adaptation methods that can be particularly useful for the class of metaheuristic optimization algorithms. The first part of the dissertation comprises the necessary background information on the current state-of-the-art and the optimization algorithms that will be used for demonstration purpose. In the second part of the thesis, two new online parameter adaptation methods are proposed. The first method, called Grid-based Parameter Adaptation Method, is based on grid search in the parameter space. The proposed methodcan be used on any algorithm and tackles both scalar and discrete parameters (including categoricalones). The new method is demonstrated on two state-of-the-art metaheuristics. For this purpose, two established benchmark suites are also considered. The second proposed method, called Gradientbased Parameter Adaptation Method with Line Search, replaces the grid search with approximate gradient search in the parameter space. The search procedure is further equipped with a recently proposed gradient-free line search technique. These modifications offer additional performance improvement with respect to the grid-based method, as revealed by the relevant performance assessment.
Τα προβλήµατα βελτιστοποίησης βρίσκονται στον πυρήνα της επιστηµονικής και τεχνολογικής έρευνας. Εµφανίζονται σχεδόν σε κάθε διαδικασία λήψης αποφάσεων, υπό διάφορους τύπους…
Subjects/Keywords: Μεταευρετικοί αλγόριθμοι; Βελτιστοποίηση; Online προσαρμογή παραμέτρων; Ρύθμιση παραμέτρων; Διαφοροεξελικτικοί αλγόριθμοι; Αλγόριθμος βελτιστοποίησης σμήνους σωματιδίων; Αναζήτηση πλέγματος; Προσεγγιστική αναζήτηση παραγώγων; Τεχνική ευθύγραμμης αναζήτησης; Metaheuristics algorithms; Optimization; Online parameter adaptation; Parameter control; Differential evolution; Particle swarm optimization; Grid-search; Gradient estimations; Line search
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Tatsis, V. (2019). Online parameter adaptation methods for population-based metaheurisistics. (Thesis). University of Ioannina; Πανεπιστήμιο Ιωαννίνων. Retrieved from http://hdl.handle.net/10442/hedi/46285
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Tatsis, Vasileios. “Online parameter adaptation methods for population-based metaheurisistics.” 2019. Thesis, University of Ioannina; Πανεπιστήμιο Ιωαννίνων. Accessed January 22, 2021.
http://hdl.handle.net/10442/hedi/46285.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Tatsis, Vasileios. “Online parameter adaptation methods for population-based metaheurisistics.” 2019. Web. 22 Jan 2021.
Vancouver:
Tatsis V. Online parameter adaptation methods for population-based metaheurisistics. [Internet] [Thesis]. University of Ioannina; Πανεπιστήμιο Ιωαννίνων; 2019. [cited 2021 Jan 22].
Available from: http://hdl.handle.net/10442/hedi/46285.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Tatsis V. Online parameter adaptation methods for population-based metaheurisistics. [Thesis]. University of Ioannina; Πανεπιστήμιο Ιωαννίνων; 2019. Available from: http://hdl.handle.net/10442/hedi/46285
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

York University
22.
McCarthy, Molly Clare.
Couple Sexuality After Treatment for Colerectal Cancer and Adaptation to an Ostomy: Bridging the Divide Between Needs, Recommendations, and Treatment.
Degree: PhD, Psychology (Functional Area: Clinical Psychology), 2020, York University
URL: http://hdl.handle.net/10315/38009
► Objective: Over the course of three sequential qualitative studies, this investigation aims to better understand and support couples sexual adjustment following ostomy surgery for colorectal…
(more)
▼ Objective: Over the course of three sequential qualitative studies, this investigation aims to better understand and support couples sexual adjustment following ostomy surgery for colorectal cancer (CRC).
Method: Study 1 consists of a grounded theory analysis of interviews with 11 couples about their sexual adjustment. Study 2 presents an embedded-case study of a novel
online intervention to facilitate conversations within couples about the sexual changes they have experienced following the ostomy and CRC. The analysis uses post-treatment interview transcripts with two couples and facilitator observations as sources of data. Study 3 entails a thematic analysis of interviews with 11 healthcare providers (HCPs) about the barriers to engaging couples in a trial of the same
online intervention, following challenges in recruitment.
Results: In study 1, results point to a natural resiliency of couples to adjust to sexual changes imposed by the ostomy and CRC, at least to some degree, and yet the need for HCPs to offer support to couples around these concerns. Results of study 2 reveal several avenues for future development of the program and provide preliminary information about the interventions acceptability and feasibility. In study 3, results describe several barriers to recruitment at the level of the system, HCP, patient, and intervention.
Discussion: As a collection these studies underscore the complexity of the sexual health needs of this relatively underserved cancer population and their partners, while simultaneously offering a brief approach to intervention that may support these couples sexual adjustment and shedding light on the barriers that need overcoming to conduct research in this area.
Advisors/Committee Members: Fergus, Karen D. (advisor).
Subjects/Keywords: Health education; Oncology; Cancer; Colorectal cancer; Ostomy; Colostomy; Ileostomy; Sex; Sexual health; Sexuality; Sexual intervention; Couples; Intimacy; Intimate relationship; Relational adjustment; Couple adjustment; Couple adaptation; Qualitative methods; Case study; Grounded theory; Thematic analysis; Online intervention; Online therapy; Virtual therapy; Sex education; Cancer care; Supportive care
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
McCarthy, M. C. (2020). Couple Sexuality After Treatment for Colerectal Cancer and Adaptation to an Ostomy: Bridging the Divide Between Needs, Recommendations, and Treatment. (Doctoral Dissertation). York University. Retrieved from http://hdl.handle.net/10315/38009
Chicago Manual of Style (16th Edition):
McCarthy, Molly Clare. “Couple Sexuality After Treatment for Colerectal Cancer and Adaptation to an Ostomy: Bridging the Divide Between Needs, Recommendations, and Treatment.” 2020. Doctoral Dissertation, York University. Accessed January 22, 2021.
http://hdl.handle.net/10315/38009.
MLA Handbook (7th Edition):
McCarthy, Molly Clare. “Couple Sexuality After Treatment for Colerectal Cancer and Adaptation to an Ostomy: Bridging the Divide Between Needs, Recommendations, and Treatment.” 2020. Web. 22 Jan 2021.
Vancouver:
McCarthy MC. Couple Sexuality After Treatment for Colerectal Cancer and Adaptation to an Ostomy: Bridging the Divide Between Needs, Recommendations, and Treatment. [Internet] [Doctoral dissertation]. York University; 2020. [cited 2021 Jan 22].
Available from: http://hdl.handle.net/10315/38009.
Council of Science Editors:
McCarthy MC. Couple Sexuality After Treatment for Colerectal Cancer and Adaptation to an Ostomy: Bridging the Divide Between Needs, Recommendations, and Treatment. [Doctoral Dissertation]. York University; 2020. Available from: http://hdl.handle.net/10315/38009
23.
Xenaki, Spyridoula.
Advances in possibilistic clustering with application to hyperspectral image processing.
Degree: 2017, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)
URL: http://hdl.handle.net/10442/hedi/40704
► Clustering is a well established data analysis methodology that has been extensively used in various fields of applications during the last decades. The main focus…
(more)
▼ Clustering is a well established data analysis methodology that has been extensively used in various fields of applications during the last decades. The main focus of the present thesis is on a well-known cost-function optimization-based family of clustering algorithms, called Possibilistic C-Means (PCM) algorithms. Specifically, the shortcomings of PCM algorithms are exposed and novel batch and online PCM schemes are proposed to cope with them. These schemes rely on (i) the adaptation of certain parameters which remain fixed during the execution of the original PCMs and (ii) the adoption of sparsity. The incorporation of these two characteristics renders the proposed schemes: (a) capable, in principle, to reveal the true number of physical clusters formed by the data, (b) capable to uncover the underlying clustering structure even in demanding cases, where the physical clusters are closely located to each other and/or have significant differences in their variances and/or densities, and (c) immune to the presence of noise and outliers. Moreover, theoretical results concerning the convergence of the proposed algorithms, also applicable to the classical PCMs, are provided. The potential of the proposed methods is demonstrated via extensive experimentation on both synthetic and real data sets. In addition, they have been successfully applied on the challenging problem of clustering in HyperSpectral Images (HSIs). Finally, a feature selection technique suitable for HSIs has also been developed.
Η ομαδοποίηση δεδομένων είναι μια εδραιωμένη μεθοδολογία ανάλυσης δεδομένων που έχει χρησιμοποιηθεί εκτενώς σε διάφορα πεδία εφαρμογών κατά τη διάρκεια των τελευταίων δεκαετιών. Η παρούσα διατριβή εστιάζει κυρίως στην ευρύτερη οικογένεια των αλγορίθμων βελτιστοποίησης κόστους και πιο συγκεκριμένα στους αλγόριθμους ομαδοποίησης με βάση τα ενδεχόμενα (Possibilistic c-Means, PCM). Συγκεκριμένα, αφού εκτίθενται τα αδύνατα σημεία τους, προτείνονται νέοι (batch και online) PCM αλγόριθμοι που αποτελούν επεκτάσεις των προηγουμένων και αντιμετωπίζουν τα αδύνατα σημεία των πρώτων. Οι προτεινόμενοι αλγόριθμοι ομαδοποίησης βασίζονται κυρίως στην υιοθέτηση των εννοιών (α) της προσαρμοστικότητας παραμέτρων (parameter adaptivity), οι οποίες στους κλασσικούς PCM αλγορίθμους παραμένουν σταθερές κατά την εκτέλεσή τους και (β) της αραιότητας (sparsity). Αυτά τα χαρακτηριστικά προσδίδουν νέα δυναμική στους προτεινόμενους αλγορίθμους οι οποίοι πλέον: (α) είναι (κατ' αρχήν) σε θέση να προσδιορίσουν τον πραγματικό αριθμό των φυσικών ομάδων που σχηματίζονται από τα δεδομένα, (β) είναι ικανοί να αποκαλύψουν την υποκείμενη δομή ομαδοποίησης, ακόμη και σε δύσκολες περιπτώσεις, όπου οι φυσικές ομάδες βρίσκονται κοντά η μία στην άλλη ή/και έχουν σημαντικές διαφορές στις διακυμάνσεις ή/και στις πυκνότητές τους και (γ) είναι εύρωστοι στην παρουσία θορύβου και ακραίων σημείων. Επίσης, δίνονται θεωρητικά αποτελέσματα σχετικά με τη σύγκλιση των προτεινόμενων αλγορίθμων, τα οποία βρίσκουν επίσης εφαρμογή και στους κλασσικούς PCM αλγορίθμους. Η δυναμική των…
Subjects/Keywords: Ομαδοποίηση με βάση τα ενδεχόμενα; Προσαρμογή παραμέτρων; Αραιότητα; Εξάλειψη ομάδας; Ανάλυση σύγκλισης; Online ομαδοποίηση; Επιλογή χαρακτηριστικών; Επεξεργασία υπερφασματικής εικόνας; Possibilistic clustering; Parameter adaptation; Sparsity; Custer elimination; Convergence analysis; Online clustering; Feature selection; Hyperspectral image processing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Xenaki, S. (2017). Advances in possibilistic clustering with application to hyperspectral image processing. (Thesis). National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Retrieved from http://hdl.handle.net/10442/hedi/40704
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Xenaki, Spyridoula. “Advances in possibilistic clustering with application to hyperspectral image processing.” 2017. Thesis, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Accessed January 22, 2021.
http://hdl.handle.net/10442/hedi/40704.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Xenaki, Spyridoula. “Advances in possibilistic clustering with application to hyperspectral image processing.” 2017. Web. 22 Jan 2021.
Vancouver:
Xenaki S. Advances in possibilistic clustering with application to hyperspectral image processing. [Internet] [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2017. [cited 2021 Jan 22].
Available from: http://hdl.handle.net/10442/hedi/40704.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Xenaki S. Advances in possibilistic clustering with application to hyperspectral image processing. [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2017. Available from: http://hdl.handle.net/10442/hedi/40704
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
24.
Szczepanski, Michał.
Online stereo camera calibration on embedded systems : Calibrage en ligne des caméras stéréo sur les systèmes embarqués.
Degree: Docteur es, Informatique, 2019, Clermont Auvergne
URL: http://www.theses.fr/2019CLFAC095
► Cette thèse décrit une approche de calibration en ligne des caméras stéréo pour des systèmes embarqués. Le manuscrit introduit une nouvelle mesure de la qualité…
(more)
▼ Cette thèse décrit une approche de calibration en ligne des caméras stéréo pour des systèmes embarqués. Le manuscrit introduit une nouvelle mesure de la qualité du service de cette fonctionnalité dans les systèmes cyber physiques. Ainsi, le suivi et le calcul des paramètres internes du capteur (requis pour de nombreuses tâches de vision par ordinateur) est réalisé dynamiquement. La méthode permet à la fois d'augmenter la sécurité et d'améliorer les performances des systèmes utilisant des caméras stéréo. Elle prolonge la durée de vie des appareils grâce à cette procédure d'auto-réparation, et peut accroître l'autonomie. Des systèmes tels que les robots mobiles ou les lunettes intelligentes en particulier peuvent directement bénéficier de cette technique.La caméra stéréo est un capteur capable de fournir un large spectre de données. Au préalable, le capteur doit être calibré extrinsèquement, c'est à dire que les positions relatives des deux caméras doivent être déterminées. Cependant, cette calibration extrinsèque peut varier au cours du temps à cause d'interactions avec l'environnement extérieur par exemple (chocs, vibrations...). Ainsi, une opération de recalibration permet de corriger ces effets. En effet, des données mal comprises peuvent entraîner des erreurs et le mauvais fonctionnement des applications. Afin de contrer un tel scénario, le système doit disposer d'un mécanisme interne, la qualité des services, pour décider si les paramètres actuels sont corrects et/ou en calculer des nouveaux, si nécessaire. L'approche proposée dans cette thèse est une méthode d'auto-calibration basée sur l'utilisation de données issues uniquement de la scène observée (sans modèles contrôlés). Tout d'abord, nous considérons la calibration comme un processus système s'exécutant en arrière-plan devant fonctionner en continu et en temps réel. Cette calibration interne n'est pas la tâche principale du système, mais la procédure sur laquelle s'appuient les applications de haut niveau. Pour cette raison, les contraintes systèmes limitent considérablement l'algorithme en termes de complexité, de mémoire et de temps. La méthode de calibration proposée nécessite peu de ressources et utilise des données standards provenant d'applications de vision par ordinateur, de sorte qu'elle est masquée à l'intérieur du pipeline applicatif. Dans ce manuscrit, de nombreuses discussions sont consacrées aux sujets liés à la calibration de caméras en ligne pour des systèmes embarqués, tels que des problématiques sur l'extraction de points d'intérêts robustes et au calcul du facteur d'échelle, les aspects d’implémentation matérielle, les applications de haut niveau nécessitant cette approche, etc.Enfin, cette thèse décrit et explique une méthodologie pour la constitution d'un nouveau type d'ensemble de données, permettant de représenter un changement de position d'une caméra,pour valider l’approche. Le manuscrit explique également les différents environnements de travail utilisés dans la réalisation des jeux de données et la procédure de calibration de la…
Advisors/Committee Members: Chausse, Frédéric (thesis director).
Subjects/Keywords: Calibration de caméra stéréo en ligne; Lunettes intelligentes; Modèle de caméra; Matrice essentielle; Paramètres extrinsèques; Systèmes embarqués; Traitement sur systèmes embarqués; Calibration; Calibrage; Auto-adaptation; Self-healing; Auto-calibration; Surveillance de caméra en ligne; Qualité des services; Temps réel; Online stereo camera calibration; Smart glasses; Camera model; Essential matrix; Extrinsic parameters; Embedded systems; Processing on embedded systems; Calibration; Auto- adaptation; Self-healing; Self-calibration; Online camera monitoring; Quality of services; Real time
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Szczepanski, M. (2019). Online stereo camera calibration on embedded systems : Calibrage en ligne des caméras stéréo sur les systèmes embarqués. (Doctoral Dissertation). Clermont Auvergne. Retrieved from http://www.theses.fr/2019CLFAC095
Chicago Manual of Style (16th Edition):
Szczepanski, Michał. “Online stereo camera calibration on embedded systems : Calibrage en ligne des caméras stéréo sur les systèmes embarqués.” 2019. Doctoral Dissertation, Clermont Auvergne. Accessed January 22, 2021.
http://www.theses.fr/2019CLFAC095.
MLA Handbook (7th Edition):
Szczepanski, Michał. “Online stereo camera calibration on embedded systems : Calibrage en ligne des caméras stéréo sur les systèmes embarqués.” 2019. Web. 22 Jan 2021.
Vancouver:
Szczepanski M. Online stereo camera calibration on embedded systems : Calibrage en ligne des caméras stéréo sur les systèmes embarqués. [Internet] [Doctoral dissertation]. Clermont Auvergne; 2019. [cited 2021 Jan 22].
Available from: http://www.theses.fr/2019CLFAC095.
Council of Science Editors:
Szczepanski M. Online stereo camera calibration on embedded systems : Calibrage en ligne des caméras stéréo sur les systèmes embarqués. [Doctoral Dissertation]. Clermont Auvergne; 2019. Available from: http://www.theses.fr/2019CLFAC095
25.
ZHANG XIAOQING.
MOTIVATING CUSTOMER RETENTION AND ENGAGEMENT IN ONLINE VIDEO STREAMING INDUSTRY.
Degree: 2019, National University of Singapore
URL: https://scholarbank.nus.edu.sg/handle/10635/163173
Subjects/Keywords: customer retention; online video streaming; grandfather clause; time-sync comments (TSC); video emotionality; hedonic adaptation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
XIAOQING, Z. (2019). MOTIVATING CUSTOMER RETENTION AND ENGAGEMENT IN ONLINE VIDEO STREAMING INDUSTRY. (Thesis). National University of Singapore. Retrieved from https://scholarbank.nus.edu.sg/handle/10635/163173
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
XIAOQING, ZHANG. “MOTIVATING CUSTOMER RETENTION AND ENGAGEMENT IN ONLINE VIDEO STREAMING INDUSTRY.” 2019. Thesis, National University of Singapore. Accessed January 22, 2021.
https://scholarbank.nus.edu.sg/handle/10635/163173.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
XIAOQING, ZHANG. “MOTIVATING CUSTOMER RETENTION AND ENGAGEMENT IN ONLINE VIDEO STREAMING INDUSTRY.” 2019. Web. 22 Jan 2021.
Vancouver:
XIAOQING Z. MOTIVATING CUSTOMER RETENTION AND ENGAGEMENT IN ONLINE VIDEO STREAMING INDUSTRY. [Internet] [Thesis]. National University of Singapore; 2019. [cited 2021 Jan 22].
Available from: https://scholarbank.nus.edu.sg/handle/10635/163173.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
XIAOQING Z. MOTIVATING CUSTOMER RETENTION AND ENGAGEMENT IN ONLINE VIDEO STREAMING INDUSTRY. [Thesis]. National University of Singapore; 2019. Available from: https://scholarbank.nus.edu.sg/handle/10635/163173
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Florida
26.
Eddleton, Forrest K.
Communication of Past Adaptation Using Local History in Rural Planning for Sea Level Rise.
Degree: MA, Urban and Regional Planning, 2012, University of Florida
URL: https://ufdc.ufl.edu/UFE0044303
► The changing climate is tasking regions and communities to adapt in order to survive and prosper in the long term (Jancaitis 2008). This is especially…
(more)
▼ The changing climate is tasking regions and communities to adapt in order to survive and prosper in the long term (Jancaitis 2008). This is especially true in rural coastal areas affected by rising sea levels. Much research has been done on planning for sea level rise in urban areas however; research on rural coastal communities has lagged far behind. Additionally, planning and
adaptation in small coastal communities has been further complicated by challenges such as limited financial resources that are faced in rural planning in general (Stauber 2001, Woods 2005, Jensen 2009).
Advisors/Committee Members: Frank, Kathryn (committee chair).
Subjects/Keywords: Academic communities; Climate change; Communities; Counties; Keys; Local histories; Online communities; Political history; Sea level rise; Social engineering; adaptation – analysis – change – climate – coastal – collaboration – communication – community – florida – historical – identity – level – planning – rise – rural – sea; Levy County ( local )
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APA (6th Edition):
Eddleton, F. K. (2012). Communication of Past Adaptation Using Local History in Rural Planning for Sea Level Rise. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044303
Chicago Manual of Style (16th Edition):
Eddleton, Forrest K. “Communication of Past Adaptation Using Local History in Rural Planning for Sea Level Rise.” 2012. Masters Thesis, University of Florida. Accessed January 22, 2021.
https://ufdc.ufl.edu/UFE0044303.
MLA Handbook (7th Edition):
Eddleton, Forrest K. “Communication of Past Adaptation Using Local History in Rural Planning for Sea Level Rise.” 2012. Web. 22 Jan 2021.
Vancouver:
Eddleton FK. Communication of Past Adaptation Using Local History in Rural Planning for Sea Level Rise. [Internet] [Masters thesis]. University of Florida; 2012. [cited 2021 Jan 22].
Available from: https://ufdc.ufl.edu/UFE0044303.
Council of Science Editors:
Eddleton FK. Communication of Past Adaptation Using Local History in Rural Planning for Sea Level Rise. [Masters Thesis]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044303

University of Georgia
27.
Kennedy, Elizabeth T.
Isolated but not alone.
Degree: 2014, University of Georgia
URL: http://hdl.handle.net/10724/21547
► On-line support groups have become an accepted place for families to seek support concerning their children with special needs. Recently, an increased survival rate of…
(more)
▼ On-line support groups have become an accepted place for families to seek support concerning their children with special needs. Recently, an increased survival rate of the premature infant has been associated with stresses and disruptions in
the lifestyles of families. Research evidence is almost non-existent with regards to studying the characteristics of online support groups for parents of children with chronic health problems and for understanding the families' point of view with regards
to prematurity. The purpose of this qualitative study, using an ethnographic design, was to describe and understand the lived experiences of families who participate in the Preemie-L Internet support group for families with premature children. The
theoretical framework for analysis used a symbolic interactionist theoretical perspective. The presented findings provide evidence that these virtual communities produce global, intercultural commonalties that cannot be neatly separated into offline and
online realties. The stories that the family members told, as observed through computer-mediated communication, confirmed that there are long-term implications that effect the well-being of the families as related to on-going health problems, forced
relationships with professionals, and an overlay of on-going psychological stress. Positive resources gained from the online support group were informational and social support. Themes that arose from the data show that meaningful interaction on the
listserv provided opportunities to problem solve from collective experience that influenced the development of self-efficacy and control over their individual situation. Educational implications stress the importance of professionals understanding the
families' perspective and to understand the benefits of online support groups as a positive coping resource. Outcomes provide evidence to assist with the development of public, educational, and health policy to support the families in a life-span
approach. The need to follow these children and families into the later school years and young adulthood was implicated.
Subjects/Keywords: Preterm infants; Low birthweight outcomes; Online support groups; Family perceptions; Family resources and adaptation; Professional-family relations; Family well-being; Human agency; Advocacy; Symbolic interactionism; Model of family stress and adaption
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kennedy, E. T. (2014). Isolated but not alone. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/21547
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kennedy, Elizabeth T. “Isolated but not alone.” 2014. Thesis, University of Georgia. Accessed January 22, 2021.
http://hdl.handle.net/10724/21547.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kennedy, Elizabeth T. “Isolated but not alone.” 2014. Web. 22 Jan 2021.
Vancouver:
Kennedy ET. Isolated but not alone. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Jan 22].
Available from: http://hdl.handle.net/10724/21547.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kennedy ET. Isolated but not alone. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/21547
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
28.
Buttar, Sarpreet Singh.
Applying Machine Learning to Reduce the Adaptation Space in Self-Adaptive Systems : an exploratory work.
Degree: computer science and media technology (CM), 2018, Linnaeus University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-77201
► Self-adaptive systems are capable of autonomously adjusting their behavior at runtime to accomplish particular adaptation goals. The most common way to realize self-adaption is…
(more)
▼ Self-adaptive systems are capable of autonomously adjusting their behavior at runtime to accomplish particular adaptation goals. The most common way to realize self-adaption is using a feedback loop(s) which contains four actions: collect runtime data from the system and its environment, analyze the collected data, decide if an adaptation plan is required, and act according to the adaptation plan for achieving the adaptation goals. Existing approaches achieve the adaptation goals by using formal methods, and exhaustively verify all the available adaptation options, i.e., adaptation space. However, verifying the entire adaptation space is often not feasible since it requires time and resources. In this thesis, we present an approach which uses machine learning to reduce the adaptation space in self-adaptive systems. The approach integrates with the feedback loop and selects a subset of the adaptation options that are valid in the current situation. The approach is applied on the simulator of a self-adaptive Internet of Things application which is deployed in KU Leuven, Belgium. We compare our results with a formal model based self-adaptation approach called ActivFORMS. The results show that on average the adaptation space is reduced by 81.2% and the adaptation time by 85% compared to ActivFORMS while achieving the same quality guarantees.
Subjects/Keywords: Self-adaptive systems; Architecture-based self-adaptation; Adaptation space; MAPE-K feedback loop; DeltaIoT; ActivFORMS; Machine learning; Online supervised learning; Classification; Regression; Engineering and Technology; Teknik och teknologier
…systems. To overcome this problem, software engineers have moved toward self-adaptation
[3… …x5D;, [4], [5], [6].
Self-Adaptation is a prominent approach… …order to accomplish particular adaptation
goals. Here, adaptation goals refer to a list of… …adaptations such as architecturebased self-adaptation, self-healing, context-aware and model-driven… …self-adaptation, etc.
[7]. In this thesis, we target the architecture-based self…
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Buttar, S. S. (2018). Applying Machine Learning to Reduce the Adaptation Space in Self-Adaptive Systems : an exploratory work. (Thesis). Linnaeus University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-77201
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Buttar, Sarpreet Singh. “Applying Machine Learning to Reduce the Adaptation Space in Self-Adaptive Systems : an exploratory work.” 2018. Thesis, Linnaeus University. Accessed January 22, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-77201.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Buttar, Sarpreet Singh. “Applying Machine Learning to Reduce the Adaptation Space in Self-Adaptive Systems : an exploratory work.” 2018. Web. 22 Jan 2021.
Vancouver:
Buttar SS. Applying Machine Learning to Reduce the Adaptation Space in Self-Adaptive Systems : an exploratory work. [Internet] [Thesis]. Linnaeus University; 2018. [cited 2021 Jan 22].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-77201.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Buttar SS. Applying Machine Learning to Reduce the Adaptation Space in Self-Adaptive Systems : an exploratory work. [Thesis]. Linnaeus University; 2018. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-77201
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
29.
Joseph, Vinay.
Mean-Variability-Fairness tradeoffs in resource allocation with applications to video delivery.
Degree: PhD, Electrical and Computer Engineering, 2013, University of Texas – Austin
URL: http://hdl.handle.net/2152/21260
► Network Utility Maximization (NUM) provides a key conceptual framework to study reward allocation amongst a collection of users/entities in disciplines as diverse as economics, law…
(more)
▼ Network Utility Maximization (NUM) provides a key conceptual framework to study reward allocation amongst a collection of users/entities in disciplines as diverse as economics, law and engineering. However when the available resources and/or users' utilities vary over time, reward allocations will tend to vary, which in turn may have a detrimental impact on the users' overall satisfaction or quality of experience. In this thesis, we introduce a generalization of the NUM framework which incorporates the detrimental impact of temporal variability in a user's allocated rewards and explicitly incorporates Mean-Variability-Fairness tradeoffs, i.e., tradeoffs amongst the mean and variability in users' reward allocations, as well as fairness across users. We propose a simple
online algorithm to realize these tradeoffs, which, under stationary ergodic assumptions, is shown to be asymptotically optimal, i.e., achieves a long term performance equal to that of an offline algorithm with knowledge of the future variability in the system. This substantially extends work on NUM to an interesting class of relevant problems where users/entities are sensitive to temporal variability in their service or allocated rewards. We extend the theoretical framework and tools developed for realizing Mean-Variability-Fairness tradeoffs to develop a simple
online algorithm to solve the problem of optimizing video delivery in networks. The tremendous increase in mobile video traffic projected for the future along with insufficiency of available wireless network capacity makes this one of the most important networking problems today. Specifically, we consider a network supporting video clients streaming stored video, and focus on the problem of jointly optimizing network resource allocation and video clients' video quality
adaptation. Our objective is to fairly maximize video clients' video Quality of Experience (QoE) realizing Mean-Variability-Fairness tradeoffs, incorporating client preferences on rebuffering time and the cost of video delivery. We present a simple asymptotically optimal
online algorithm NOVA (Network Optimization for Video
Adaptation) to solve the problem. Our algorithm uses minimal communication, 'distributes' the tasks of network resource allocation to a centralized network controller, and video clients' video quality
adaptation to the respective video clients. Further, the quality
adaptation is also optimal for standalone video clients, and is an asynchronous algorithm well suited for use in the Dynamic Adaptive Streaming over HTTP (DASH) framework. We also extend NOVA for use with more general video QoE models, and study NOVA accounting for practical considerations like time varying number of video clients, sharing with other types of traffic, performance under legacy resource allocation policies, videos with variable sized segments etc.
Advisors/Committee Members: De Veciana, Gustavo (advisor).
Subjects/Keywords: Mean-Variability-Fairness tradeoffs; Simple online algorithm; Variability aware NUM; Temporal variance; Video; NOVA; QoE driven; Rate adaptation; Quality adaptation; DASH; HTTP-based adaptive video streaming
…develop a simple online algorithm NOVA (Network Optimization for Video
Adaptation) to… …for realizing MeanVariability-Fairness tradeoffs to develop a simple online algorithm to… …jointly optimizing network resource allocation and video
clients’ video quality adaptation. Our… …time and the cost of video delivery. We
present a simple asymptotically optimal online… …algorithm NOVA (Network Optimization for Video Adaptation) to solve the problem. Our…
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Joseph, V. (2013). Mean-Variability-Fairness tradeoffs in resource allocation with applications to video delivery. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/21260
Chicago Manual of Style (16th Edition):
Joseph, Vinay. “Mean-Variability-Fairness tradeoffs in resource allocation with applications to video delivery.” 2013. Doctoral Dissertation, University of Texas – Austin. Accessed January 22, 2021.
http://hdl.handle.net/2152/21260.
MLA Handbook (7th Edition):
Joseph, Vinay. “Mean-Variability-Fairness tradeoffs in resource allocation with applications to video delivery.” 2013. Web. 22 Jan 2021.
Vancouver:
Joseph V. Mean-Variability-Fairness tradeoffs in resource allocation with applications to video delivery. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2013. [cited 2021 Jan 22].
Available from: http://hdl.handle.net/2152/21260.
Council of Science Editors:
Joseph V. Mean-Variability-Fairness tradeoffs in resource allocation with applications to video delivery. [Doctoral Dissertation]. University of Texas – Austin; 2013. Available from: http://hdl.handle.net/2152/21260
30.
Lin, Fanqing.
Flow Adaptive Video Object Segmentation.
Degree: MS, 2018, Brigham Young University
URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=8067&context=etd
► We tackle the task of semi-supervised video object segmentation, i.e, pixel-level object classification of the images in video sequences using very limited ground truth training…
(more)
▼ We tackle the task of semi-supervised video object segmentation, i.e, pixel-level object classification of the images in video sequences using very limited ground truth training data of its corresponding video. Recently introduced online adaptation of convolutional neural networks for video object segmentation (OnAVOS) has achieved good results by pretraining the network, fine-tuning on the first frame and training the network at test time using its approximate prediction as newly obtained ground truth. We propose Flow Adaptive Video Object Segmentation (FAVOS) that refines the generated adaptive ground truth for online updates and utilizes temporal consistency between video frames with the help of optical flow. We validate our approach on the DAVIS Challenge and achieve rank 1 results on the DAVIS 2016 Challenge (single-object segmentation) and competitive scores on both DAVIS 2018 Semi-supervised Challenge and Interactive Challenge (multi-object segmentation). While most models tend to have increasing complexity for the challenging task of video object segmentation, FAVOS provides a simple and efficient pipeline that produces accurate predictions.
Subjects/Keywords: machine learning; video object segmentation; semi-supervised; interactive; convolutional neural network; optical flow; online adaptation; Computer Sciences
…mark is also evaluated. For faster
training, we omit the online adaptation from FAVOS… …large changes across the entire sequence, and hence introduces an online
adaptation step that… …the Youtube-Objects dataset.
The online adaptation method that OnAVOS uses demonstrates its… …2,
current adaptation mask online-training steps ncur = 1 pre-computed optical flow
fields… …data skew which leads to inbalanced training for
11
Figure 3.3: FAVOS online adaptation…
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lin, F. (2018). Flow Adaptive Video Object Segmentation. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=8067&context=etd
Chicago Manual of Style (16th Edition):
Lin, Fanqing. “Flow Adaptive Video Object Segmentation.” 2018. Masters Thesis, Brigham Young University. Accessed January 22, 2021.
https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=8067&context=etd.
MLA Handbook (7th Edition):
Lin, Fanqing. “Flow Adaptive Video Object Segmentation.” 2018. Web. 22 Jan 2021.
Vancouver:
Lin F. Flow Adaptive Video Object Segmentation. [Internet] [Masters thesis]. Brigham Young University; 2018. [cited 2021 Jan 22].
Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=8067&context=etd.
Council of Science Editors:
Lin F. Flow Adaptive Video Object Segmentation. [Masters Thesis]. Brigham Young University; 2018. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=8067&context=etd
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