subject:(Computing)

1. Austin, Ann. The differing profiles of the human-computer interaction professional : perceptions of practice, cognitive preferences and the impact on HCI education.

Degree: PhD, 2018, University of West London

URL: https://repository.uwl.ac.uk/id/eprint/5327/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.752563

► At a time when there is increasing demand for Human-Computer Interaction (HCI) skills, it becomes increasingly important that the curriculum is effective and relevant. This… (more)

▼ At a time when there is increasing demand for Human-Computer Interaction (HCI) skills, it becomes increasingly important that the curriculum is effective and relevant. This research aims to provide a better understanding of the professionals who work in the field of HCI. It extends previous studies by examining the different roles of HCI professionals in order to identify differences regarding cognitive preferences, background, what is valued, concerns and issues, and the potential impact of these upon curriculum design and delivery within the Higher Education sector. This study also extends technological frames theory by applying the framework to HCI practice. The literature review covers the history of HCI, the position of HCI within the software development lifecycle, HCI academic research and its relationship to practice, HCI practice and HCI education. It then discusses cognitive style research and the Cognitive Styles Index (CSI) and the Object-Spatial Imagery and Verbal Questionnaire (OSIVQ), concluding with the social construction of technology and technological frames. This study follows a mixed methods approach adopting a pragmatic epistemological stance, collecting data by means of a survey which gathered demographic data and cognitive profiles. These were complemented by interviews which were analysed using the Template Analysis approach. iv Both the quantitative and the qualitative data highlight a number of differences between the roles of the professionals, and in particular between those who educate and those who are involved in practice. The interview findings also highlight inconsistences in what is valued, and indicate that HCI is not well understood outside of the HCI community. It appears that a dominant technological frame has not yet been achieved in the field of HCI, with particular incongruences noted between academia and practice. In particular, the interviews confirm the findings of the literature that the curriculum may not be meeting the needs of practice, and that there still exists a lack of consensus regarding terminology and processes. The discussion moves on to consider the implications for the curriculum discussing the need for more input from practice when designing the curriculum, the advantages of embedding HCI skills within the curriculum in order to address graduate attributes, and the need to be aware of role differences in order to offer appropriate academic advice to students.

Subjects/Keywords: Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Austin, A. (2018). The differing profiles of the human-computer interaction professional : perceptions of practice, cognitive preferences and the impact on HCI education. (Doctoral Dissertation). University of West London. Retrieved from https://repository.uwl.ac.uk/id/eprint/5327/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.752563

Chicago Manual of Style (16^th Edition):

Austin, Ann. “The differing profiles of the human-computer interaction professional : perceptions of practice, cognitive preferences and the impact on HCI education.” 2018. Doctoral Dissertation, University of West London. Accessed February 22, 2020. https://repository.uwl.ac.uk/id/eprint/5327/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.752563.

MLA Handbook (7^th Edition):

Austin, Ann. “The differing profiles of the human-computer interaction professional : perceptions of practice, cognitive preferences and the impact on HCI education.” 2018. Web. 22 Feb 2020.

Vancouver:

Austin A. The differing profiles of the human-computer interaction professional : perceptions of practice, cognitive preferences and the impact on HCI education. [Internet] [Doctoral dissertation]. University of West London; 2018. [cited 2020 Feb 22]. Available from: https://repository.uwl.ac.uk/id/eprint/5327/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.752563.

Council of Science Editors:

Austin A. The differing profiles of the human-computer interaction professional : perceptions of practice, cognitive preferences and the impact on HCI education. [Doctoral Dissertation]. University of West London; 2018. Available from: https://repository.uwl.ac.uk/id/eprint/5327/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.752563

2. Aul, Vani. Harnessing Search Engine Optimization experience to enhance the visibility of websites.

Degree: PhD, 2018, University of West London

URL: https://repository.uwl.ac.uk/id/eprint/6272/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.781909

► Research has identified that websites can gain an added advantage by getting listed in Search Engine results Pages (SERPs) during search sessions by searchers as… (more)

▼ Research has identified that websites can gain an added advantage by getting listed in Search Engine results Pages (SERPs) during search sessions by searchers as SERPS refer targeted traffic to the websites. Search Engine Optimization (SEO) enables websites to become visible in search engines during search sessions for featured products or services. SEO is a complex technique which is directly affected by the ranking algorithms of search engines such as Google. Bearing in mind that Google employs in excess of 200 dynamic ranking factors in its algorithm it can be seen that optimization is not straightforward. Given this complex environment, websites find it difficult to initiate and implement SEO. SEO knowledge and experience gained from optimizing websites in the past is highly valuable and applicable to optimize websites both now and in the future. Therefore the main aim of the research in this thesis is to investigate the problem of optimization of websites using the prior experience gained through the optimization of several case study websites. To facilitate this, novel process models have been designed in order to capture the experience of implementing essential techniques of SEO and to explain the procedure of implementation of fundamental on-page SEO techniques that have been shown previously to yield results (i.e. increases in ranking) for past case study websites. Quantitative experiments and qualitative evaluation were undertaken to verify the efficacy of the novel process models through their application to case study websites. Mixed methods were used in order to answer the research questions, inductive experimental methods to produce, finesse and test the process models and qualitative enquiry through means of a focus group to gather peer review from professionals within the field who had previously been trained and conducted a trial using the process models. Implementation procedures of acknowledged essential on-page SEO techniques were identified from past case study websites, which have been represented in the novel process models designed in the current research and empirically investigated by applying them in the experimental case study websites. These models were applied through quantitative experiments that identified essential on-page SEO techniques which were then implemented in two experimental case study websites as per the procedures represented in the process models. These experiments have yielded positive results, resulting in establishing and/or enhancing the visibility of case study websites in SERPs. Further the implementation procedures of essential on-page SEO techniques were represented in the designed process models and stored in an SEO experience base on the principle of INRECA-II methodology. Results of the focus group suggest that the process models do achieve credible results (i.e. establishing and/or enhancing visibility of websites in SERPs) through their application and are suitable for use by both novices and professionals alike. Overall the results achieved from both the…

Subjects/Keywords: Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Aul, V. (2018). Harnessing Search Engine Optimization experience to enhance the visibility of websites. (Doctoral Dissertation). University of West London. Retrieved from https://repository.uwl.ac.uk/id/eprint/6272/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.781909

Chicago Manual of Style (16^th Edition):

Aul, Vani. “Harnessing Search Engine Optimization experience to enhance the visibility of websites.” 2018. Doctoral Dissertation, University of West London. Accessed February 22, 2020. https://repository.uwl.ac.uk/id/eprint/6272/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.781909.

MLA Handbook (7^th Edition):

Aul, Vani. “Harnessing Search Engine Optimization experience to enhance the visibility of websites.” 2018. Web. 22 Feb 2020.

Vancouver:

Aul V. Harnessing Search Engine Optimization experience to enhance the visibility of websites. [Internet] [Doctoral dissertation]. University of West London; 2018. [cited 2020 Feb 22]. Available from: https://repository.uwl.ac.uk/id/eprint/6272/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.781909.

Council of Science Editors:

Aul V. Harnessing Search Engine Optimization experience to enhance the visibility of websites. [Doctoral Dissertation]. University of West London; 2018. Available from: https://repository.uwl.ac.uk/id/eprint/6272/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.781909

Oregon State University

3. Hackebeil, Gabriel A. Efficient Oblivious Access to Trees.

Degree: MS, Computer Science, 2016, Oregon State University

URL: http://hdl.handle.net/1957/59173

► The outsourcing of data storage and related infrastructure to third-party services in the cloud is a trend that has gained considerable momentum in the last… (more)

▼ The outsourcing of data storage and related infrastructure to third-party services in the cloud is a trend that has gained considerable momentum in the last decade due to the savings it affords companies in both capital and operational costs. Although encryption can alleviate some of the privacy concerns associated with cloud storage, it comes at the cost of decreased utility of data once it is in the cloud. For instance, cloud services for searching over a large set of files are useless when those files are encrypted using standard, randomized techniques. Moreover, even though the files are encrypted, the historical access pattern over a data set (e.g., file access times/frequency, memory read/write locations) can leak significant information to malicious parties that can be combined with other metadata to partially reveal the file contents. Two research thrusts that address these issues are Symmetric Searchable Encryption (SSE) and Oblivious RAM (ORAM). SSE schemes provide an efficient means for searching over encrypted data that is stored on an untrusted server. These schemes, however, are inherently susceptible to statistical attacks by observing the history of de- terministically encrypted search queries, along with the access pattern resulting from those queries. ORAM, by design, can prevents such leakages, but it introduces high communication overhead, among other challenges. In this work we introduce new ORAM schemes tailored for more efficient private access to tree data structures, which are commonly used as search indexes. We make multi-faceted contributions that include: (i) a formal definition for obliviousness in the relaxed setting where the external storage provider knows we are accessing a tree data structure, (ii) a formal proof showing that our schemes satisfy this definition, with an- alytical and empirical results showing that we reduce transmission overhead by several factors over state-of-the-art ORAM schemes, and (iii) a Python software package called PyORAM (Python-based Oblivious RAM) that provides researchers with a powerful set of tools to build upon current ORAM methods tailored for the cloud storage set- ting. Our work has broad impacts for searchable encryption via private database search with reduced transmission requirements, which is vital for privacy-critical applications in governmental and healthcare systems. Advisors/Committee Members: Attila, Yavuz A. (advisor), Bobba, Rakesh (committee member).

Subjects/Keywords: Secure cloud computing; Cloud computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hackebeil, G. A. (2016). Efficient Oblivious Access to Trees. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/59173

Chicago Manual of Style (16^th Edition):

Hackebeil, Gabriel A. “Efficient Oblivious Access to Trees.” 2016. Masters Thesis, Oregon State University. Accessed February 22, 2020. http://hdl.handle.net/1957/59173.

MLA Handbook (7^th Edition):

Hackebeil, Gabriel A. “Efficient Oblivious Access to Trees.” 2016. Web. 22 Feb 2020.

Vancouver:

Hackebeil GA. Efficient Oblivious Access to Trees. [Internet] [Masters thesis]. Oregon State University; 2016. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/1957/59173.

Council of Science Editors:

Hackebeil GA. Efficient Oblivious Access to Trees. [Masters Thesis]. Oregon State University; 2016. Available from: http://hdl.handle.net/1957/59173

University of Hong Kong

4. 馬家駒.; Ma, Ka-kui. Lightweight task mobility support for elastic cloud computing.

Degree: PhD, 2011, University of Hong Kong

URL: Ma, K. [馬家駒]. (2011). Lightweight task mobility support for elastic cloud computing. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4786951 ; http://dx.doi.org/10.5353/th_b4786951 ; http://hdl.handle.net/10722/161533

►

Cloud computing becomes popular nowadays. It allows applications to use the enormous resources in the clouds. With the combination of mobile computing, mobile cloud computing… (more)

▼

Cloud computing becomes popular nowadays. It allows applications to use the enormous resources in the clouds. With the combination of mobile computing, mobile cloud computing is evolved. With the use of clouds, mobile applications can offload tasks to clouds in client-server model. For cloud computing, migration is an important function for supporting elasticity. Lightweight and portable task migration support allows better resource utilization and data access locality, which are essentials for the success of cloud computing. Various migration techniques are available, such as process migration, thread migration, and virtual machine live migration. However, for these existing migration techniques, migrations are too coarse-grained and costly, and this offsets the benefits from migration. Besides, the migration path is monotonic, and mobile and clouds resources cannot be utilized. In this study, we propose a new computation migration technique called stack-on-demand (SOD). This technique is based on the stack structure of tasks. Computation migration is carried out by exporting parts of the execution state to achieve lightweight and flexible migration. Compared to traditional task migration techniques, SOD allows lightweight computation migration. It allows dynamic execution flows in a multi-domain workflow style. With its lightweight feature, tasks of a large process can be migrated from clouds to small-capacity devices, such as iPhone, in order to use the unique resources, such as photos, found in the devices. In order to support its lightweight feature, various techniques have been introduced. To allow efficient access to remote objects in task migration, we propose an object faulting technique for efficient detection of remote objects. This technique avoids the checking of object status. To allow portable, lightweight application-level migration, asynchronous migration technique and twin method hierarchy instrumentation technique are proposed. This allows lightweight task migration from mobile device to cloud nodes, and vice versa. We implement the SOD concept as a middleware in a mobile cloud environment to allow transparent execution migration of Java programs. It has shown that SOD migration cost is pretty low, comparing to several existing migration mechanisms. We also conduct experiments with mobile devices to demonstrate the elasticity of SOD, in which server-side heavyweight processes can run adaptively on mobile devices to use the unique resources in the devices. On the other hand, mobile devices can seamlessly offload tasks to the cloud nodes to use the cloud resources. In addition, the system has incorporated a restorable communication layer, and this allows parallel programs to communicate properly with SOD migration.

published_or_final_version

Computer Science

Doctoral

Doctor of Philosophy

Advisors/Committee Members: Wang, CL.

Subjects/Keywords: Mobile computing.; Cloud computing.

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

馬家駒.; Ma, K. (2011). Lightweight task mobility support for elastic cloud computing. (Doctoral Dissertation). University of Hong Kong. Retrieved from Ma, K. [馬家駒]. (2011). Lightweight task mobility support for elastic cloud computing. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4786951 ; http://dx.doi.org/10.5353/th_b4786951 ; http://hdl.handle.net/10722/161533

Chicago Manual of Style (16^th Edition):

馬家駒.; Ma, Ka-kui. “Lightweight task mobility support for elastic cloud computing.” 2011. Doctoral Dissertation, University of Hong Kong. Accessed February 22, 2020. Ma, K. [馬家駒]. (2011). Lightweight task mobility support for elastic cloud computing. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4786951 ; http://dx.doi.org/10.5353/th_b4786951 ; http://hdl.handle.net/10722/161533.

MLA Handbook (7^th Edition):

馬家駒.; Ma, Ka-kui. “Lightweight task mobility support for elastic cloud computing.” 2011. Web. 22 Feb 2020.

Vancouver:

馬家駒.; Ma K. Lightweight task mobility support for elastic cloud computing. [Internet] [Doctoral dissertation]. University of Hong Kong; 2011. [cited 2020 Feb 22]. Available from: Ma, K. [馬家駒]. (2011). Lightweight task mobility support for elastic cloud computing. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4786951 ; http://dx.doi.org/10.5353/th_b4786951 ; http://hdl.handle.net/10722/161533.

Council of Science Editors:

馬家駒.; Ma K. Lightweight task mobility support for elastic cloud computing. [Doctoral Dissertation]. University of Hong Kong; 2011. Available from: Ma, K. [馬家駒]. (2011). Lightweight task mobility support for elastic cloud computing. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b4786951 ; http://dx.doi.org/10.5353/th_b4786951 ; http://hdl.handle.net/10722/161533

Nelson Mandela Metropolitan University

5. Brander, William. A model for adaptive multimodal mobile notification.

Degree: MSc, Faculty of Science, 2007, Nelson Mandela Metropolitan University

URL: http://hdl.handle.net/10948/699

► Information is useless unless it is used whilst still applicable. Having a system that notifies the user of important messages using the most appropriate medium… (more)

▼ Information is useless unless it is used whilst still applicable. Having a system that notifies the user of important messages using the most appropriate medium and device will benefit users that rely on time critical information. There are several existing systems and models for mobile notification as well as for adaptive mobile notification using context awareness. Current models and systems are typically designed for a specific set of mobile devices, modes and services. Communication however, can take place in many different modes, across many different devices and may originate from many different sources. The aim of this research was to develop a model for adaptive mobile notification using context awareness. An extensive literature study was performed into existing models for adaptive mobile notification systems using context awareness. The literature study identified several potential models but no way to evaluate and compare the models. A set of requirements to evaluate these models was developed and the models were evaluated against these criteria. The model satisfying the most requirements was adapted so as to satisfy the remaining criteria. The proposed model is extensible in terms of the modes, devices and notification sources supported. The proposed model determines the importance of a message, the appropriate device and mode (or modes) of communication based on the user‘s context, and alerts the user of the message using these modes. A prototype was developed as a proof-of-concept of the proposed model and evaluated by conducting an extensive field study. The field study highlighted the fact that most users did not choose the most suitable mode for the context during their initial subscription to the service. The field study also showed that more research needs to be done on an appropriate filtering mechanism for notifications. Users found that the notifications became intrusive and less useful the longer they used them Advisors/Committee Members: Wesson, J L Prof.

Subjects/Keywords: Mobile computing; Context-aware computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Brander, W. (2007). A model for adaptive multimodal mobile notification. (Masters Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/699

Chicago Manual of Style (16^th Edition):

Brander, William. “A model for adaptive multimodal mobile notification.” 2007. Masters Thesis, Nelson Mandela Metropolitan University. Accessed February 22, 2020. http://hdl.handle.net/10948/699.

MLA Handbook (7^th Edition):

Brander, William. “A model for adaptive multimodal mobile notification.” 2007. Web. 22 Feb 2020.

Vancouver:

Brander W. A model for adaptive multimodal mobile notification. [Internet] [Masters thesis]. Nelson Mandela Metropolitan University; 2007. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/10948/699.

Council of Science Editors:

Brander W. A model for adaptive multimodal mobile notification. [Masters Thesis]. Nelson Mandela Metropolitan University; 2007. Available from: http://hdl.handle.net/10948/699

University of Illinois – Urbana-Champaign

6. Shifteh Far, Saeidreza. A flexible fine-grained adaptive framework for parallel mobile hybrid cloud applications.

Degree: PhD, Computer Science, 2015, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/89280

► Mobile devices have become ubiquitous and provide ever richer content and functionality. At the same time, applications are also becoming more complex and require ever… (more)

▼ Mobile devices have become ubiquitous and provide ever richer content and functionality. At the same time, applications are also becoming more complex and require ever increasing amount of computational power and energy. With cloud computing providing unlimited elastic on-demand resources, supporting mobile devices with cloud allows overcoming limitations of mobile devices. This is generally known as Mobile Cloud Computing (MCC) and can be achieved through code offloading that selects computationally or data intensive parts of an application, outsources them to more-resourceful spaces and brings back the final results. While code offloading has been widely studied in the past within the context of distributed systems and grid computing, applying it to current mobile applications requires significant amount of manual changes to existing application codes. An alternative is to outsource the entire application process or the whole virtual machine in which the application is running. This solution assumes running the same code on a more-resourceful system is more efficient, but it is coarse-grained and requires significant amount of data to be transferred. Furthermore, requirements and expectations from mobile applications vary considerably by different users using wide range of mobile devices in various environmental conditions. This diversity in requirements and expectations creates wide range of target offloading goals, ranging from maximizing application performance to minimizing mobile energy consumption. The increased dynamicity and complexity of mobile cloud applications requires open systems that interact with the environment while addressing application-specific constraints, user expectations and hardware limitations. Our goal is to facilitate mobile cloud application development by masking all the complexity of mobile-to-cloud code offloading without requiring application developers to rewrite their code or perform additional manual work. Our focus is on separating the application logic, to be developed by programmers, from the application component configuration and distribution, to be adjusted transparently and dynamically at run-time. Our framework is fine-grained, supporting mobile application configuration and distribution at the granularity of individual components; it is flexible, allowing organizations, application developers, or end-users easily adjust target offloading goal or define policy-driven restrictions on offloading budget, execution quality, or privacy and move around of components without modifying the existing application codes; and it is adaptive, addressing the dynamicity in run-time conditions and end-user contexts. It further supports component distribution in a hybrid cloud environment consisting of multiple public and private cloud spaces. Finally, it provides a new code offloading model that supports fully parallel program execution, where application components located at mobile device and multiple cloud spaces are executed independently but concurrently. The proposed… Advisors/Committee Members: Agha, Gul (advisor), Agha, Gul (Committee Chair), Abdelzaher, Tarek F. (committee member), Vaidya, Nitin (committee member), Varela, Carlos A. (committee member).

Subjects/Keywords: cloud computing; mobile computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Shifteh Far, S. (2015). A flexible fine-grained adaptive framework for parallel mobile hybrid cloud applications. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/89280

Chicago Manual of Style (16^th Edition):

Shifteh Far, Saeidreza. “A flexible fine-grained adaptive framework for parallel mobile hybrid cloud applications.” 2015. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed February 22, 2020. http://hdl.handle.net/2142/89280.

MLA Handbook (7^th Edition):

Shifteh Far, Saeidreza. “A flexible fine-grained adaptive framework for parallel mobile hybrid cloud applications.” 2015. Web. 22 Feb 2020.

Vancouver:

Shifteh Far S. A flexible fine-grained adaptive framework for parallel mobile hybrid cloud applications. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2015. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/2142/89280.

Council of Science Editors:

Shifteh Far S. A flexible fine-grained adaptive framework for parallel mobile hybrid cloud applications. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/89280

Ryerson University

7. Sakhamuri, Praneeth. Deployment of virtual machines for tiered applications in cloud systems with optimized resource allocation based on availability SLAS.

Degree: 2017, Ryerson University

URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A6549

► Deploying and managing high availability-tiered application in the cloud is challenging, as it requires providing necessary virtual machines to make the application available. An application… (more)

Subjects/Keywords: Cloud computing; Cloud computing – Research

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sakhamuri, P. (2017). Deployment of virtual machines for tiered applications in cloud systems with optimized resource allocation based on availability SLAS. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A6549

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sakhamuri, Praneeth. “Deployment of virtual machines for tiered applications in cloud systems with optimized resource allocation based on availability SLAS.” 2017. Thesis, Ryerson University. Accessed February 22, 2020. https://digital.library.ryerson.ca/islandora/object/RULA%3A6549.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sakhamuri, Praneeth. “Deployment of virtual machines for tiered applications in cloud systems with optimized resource allocation based on availability SLAS.” 2017. Web. 22 Feb 2020.

Vancouver:

Sakhamuri P. Deployment of virtual machines for tiered applications in cloud systems with optimized resource allocation based on availability SLAS. [Internet] [Thesis]. Ryerson University; 2017. [cited 2020 Feb 22]. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A6549.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sakhamuri P. Deployment of virtual machines for tiered applications in cloud systems with optimized resource allocation based on availability SLAS. [Thesis]. Ryerson University; 2017. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A6549

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Georgia

8. Lim, Chulwoo. Using massively parallel evolutionary computation on GPUS for biological circuit reconstruction.

Degree: MS, Computer Science, 2013, University of Georgia

URL: http://purl.galileo.usg.edu/uga_etd/lim_chulwoo_201312_ms

► A fundamental and ubiquitous difficulty of systems biology is identifying relevant model parameters. A genetic network model of the biological clock of Neurospora crassa that… (more)

Subjects/Keywords: Evolutionary Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lim, C. (2013). Using massively parallel evolutionary computation on GPUS for biological circuit reconstruction. (Masters Thesis). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/lim_chulwoo_201312_ms

Chicago Manual of Style (16^th Edition):

Lim, Chulwoo. “Using massively parallel evolutionary computation on GPUS for biological circuit reconstruction.” 2013. Masters Thesis, University of Georgia. Accessed February 22, 2020. http://purl.galileo.usg.edu/uga_etd/lim_chulwoo_201312_ms.

MLA Handbook (7^th Edition):

Lim, Chulwoo. “Using massively parallel evolutionary computation on GPUS for biological circuit reconstruction.” 2013. Web. 22 Feb 2020.

Vancouver:

Lim C. Using massively parallel evolutionary computation on GPUS for biological circuit reconstruction. [Internet] [Masters thesis]. University of Georgia; 2013. [cited 2020 Feb 22]. Available from: http://purl.galileo.usg.edu/uga_etd/lim_chulwoo_201312_ms.

Council of Science Editors:

Lim C. Using massively parallel evolutionary computation on GPUS for biological circuit reconstruction. [Masters Thesis]. University of Georgia; 2013. Available from: http://purl.galileo.usg.edu/uga_etd/lim_chulwoo_201312_ms

9. Nair, Binoy B. Empirical investigations on soft computing based approaches to design of stock trading recommender systems; -.

Degree: Communication engineering, 2015, Amrita Vishwa Vidyapeetham (University)

URL: http://shodhganga.inflibnet.ac.in/handle/10603/44514

Available

Bibliography p.173-188

Subjects/Keywords: computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nair, B. B. (2015). Empirical investigations on soft computing based approaches to design of stock trading recommender systems; -. (Thesis). Amrita Vishwa Vidyapeetham (University). Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/44514

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nair, Binoy B. “Empirical investigations on soft computing based approaches to design of stock trading recommender systems; -.” 2015. Thesis, Amrita Vishwa Vidyapeetham (University). Accessed February 22, 2020. http://shodhganga.inflibnet.ac.in/handle/10603/44514.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nair, Binoy B. “Empirical investigations on soft computing based approaches to design of stock trading recommender systems; -.” 2015. Web. 22 Feb 2020.

Vancouver:

Nair BB. Empirical investigations on soft computing based approaches to design of stock trading recommender systems; -. [Internet] [Thesis]. Amrita Vishwa Vidyapeetham (University); 2015. [cited 2020 Feb 22]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/44514.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nair BB. Empirical investigations on soft computing based approaches to design of stock trading recommender systems; -. [Thesis]. Amrita Vishwa Vidyapeetham (University); 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/44514

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Hong Kong

10. Zhang, Xiaoxi. Dynamic cloud resource provisioning and pricing.

Degree: PhD, 2017, University of Hong Kong

URL: http://hdl.handle.net/10722/249906

► On-demand resource provisioning in cloud computing provides tailor-made resource packages to meet users' demands. Public clouds nowadays provide more and more elaborated types of VMs,… (more)

▼ On-demand resource provisioning in cloud computing provides tailor-made resource packages to meet users' demands. Public clouds nowadays provide more and more elaborated types of VMs, but have yet to offer flexible dynamic VM assembly, due to the lack of a mature mechanism for pricing tailor-made VMs on the spot. To fulfill this research gap, this thesis investigates dynamic cloud resource provisioning and pricing in various problem settings. We first study the offline setting of VM provisioning and pricing in geo-distributed cloud data centers via a one-time auction that achieves (i) truthfulness in expectation, (ii) polynomial running time in expectation, and (iii) (1-ε)-optimal social welfare in expectation, where ε can be arbitrarily close to 0. Our proposed mechanism applies the perturbation-based scheme for VM allocation and prices the customized VMs using a randomized VCG payment. The computation efficiency is proved by a novel application of smoothed analysis. Next, we target a more realistic case of online VM auction design, where: (i) cloud users bid for resources into the future to assemble customized VMs with desired occupation durations; (ii) the cloud provider dynamically packs multiple types of resources on heterogeneous servers; (iii) the operational costs of servers are considered; (iv) both social welfare and the cloud provider's net profit are to be maximized. We propose posted-price mechanisms based on an online primal-dual optimization framework for both VM allocation and payment calculation; and a randomized reduction algorithm to convert the social welfare maximizing auctions to ones that provide a maximal expected profit for the provider. Our proposed online auctions achieve truthfulness, polynomial time, and good competitive ratios. We further extend the online model to dynamic VM scaling, where customers can repeatedly bid for increasing VM resources in scale-up or scale-out option while the cloud provider has to allocate and price the incremental resources on the go. We identify that the offline optimization program with time-coupling bids is non-standard, with a submodular objective function and non-linear constraints. Thus existing primal-dual frameworks are not applicable. Surprisingly, through novel competitive analysis based on submodularity of the offline objective, we prove that a similar posted-price mechanism proposed for the previous scenario achieves a good competitive ratio for the scaling model. We also investigate the online VM auction in a stochastic model where bid arrivals are independently and identically distributed from an unknown distribution. Via a new application of learning-based online primal-dual framework and careful analysis using probability theory, we achieve a (1-O(ε))-competitive ratio. In addition, we also address cost minimization problems in two typical network service provisioning systems, Network Function Virtualization system and cloud Content Delivery Network. We leverage online learning theory and randomized… Advisors/Committee Members: Wu, C, Lau, FCM.

Subjects/Keywords: Cloud computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhang, X. (2017). Dynamic cloud resource provisioning and pricing. (Doctoral Dissertation). University of Hong Kong. Retrieved from http://hdl.handle.net/10722/249906

Chicago Manual of Style (16^th Edition):

Zhang, Xiaoxi. “Dynamic cloud resource provisioning and pricing.” 2017. Doctoral Dissertation, University of Hong Kong. Accessed February 22, 2020. http://hdl.handle.net/10722/249906.

MLA Handbook (7^th Edition):

Zhang, Xiaoxi. “Dynamic cloud resource provisioning and pricing.” 2017. Web. 22 Feb 2020.

Vancouver:

Zhang X. Dynamic cloud resource provisioning and pricing. [Internet] [Doctoral dissertation]. University of Hong Kong; 2017. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/10722/249906.

Council of Science Editors:

Zhang X. Dynamic cloud resource provisioning and pricing. [Doctoral Dissertation]. University of Hong Kong; 2017. Available from: http://hdl.handle.net/10722/249906

University of Hong Kong

11. Qiu, Xuanjia. Dynamic utility maximization for multi-cloud based services.

Degree: PhD, 2014, University of Hong Kong

URL: Qiu, X. [邱炫佳]. (2014). Dynamic utility maximization for multi-cloud based services. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5270545 ; http://dx.doi.org/10.5353/th_b5270545 ; http://hdl.handle.net/10722/206669

► More and more clouds with diversified properties have been built. Many of them span multiple geographical locations over the globe, imposing time-varying costs on and… (more)

▼ More and more clouds with diversified properties have been built. Many of them span multiple geographical locations over the globe, imposing time-varying costs on and offering different service proximities to users. Clouds could be private or public, requiring different levels of administration effort and providing different levels of freedom to control. Hybrid clouds, which blend together multiple public and private clouds, possess properties of both types. Based on these diversified properties, multiple clouds have the potential to provide services with higher scalability, lower operational cost and better QoS. To exploit this potential, I examine the means of deploying services on multiple clouds, that can maximize utility in dynamic environments. Firstly, I consider the migration of an important representative application, content distribution services, to geo-distributed hybrid clouds. I model the problem of joint content data migration and request dispatching as a unified optimization framework, and then design a dynamic control algorithm to solve it. The algorithm bounds the response times within the preset QoS target, and guarantees that the overall cost is within a small constant gap from the optimum that can be achieved by a T-slot look ahead mechanism with known future information. Secondly, I study the problem of efficient scheduling for disparate MapReduce workloads on hybrid clouds. I build a fine-grained and tractable model to characterize the scheduling of heterogeneous MapReduce workloads. An online algorithm is proposed for joint task admission control for the private cloud, task outsourcing to the public cloud, and VM allocation to execute the admitted tasks on the private cloud, such that the time-averaged task outsourcing cost is minimized over the long run. The online algorithm features preemptive scheduling of the tasks, where a task executed partially on the on-premise infrastructure can be paused and scheduled to run later. It also achieves such desirable properties as meeting a pre-set task admission ratio and bounding the worst-case task completion time. Thirdly, I consider a cloud computing resource market where a broker is employed that pools the spare resources of multiple private clouds and leases them to serve external users' jobs. I model the interaction between the broker and the private clouds as a two-stage Stackelberg game. As the leader in the game, the broker decides on the pricing for renting VMs from each private cloud. As a follower, each private cloud responds with the number of VMs that it is willing to lease. Combining all this with Lyapunov optimization theory, I design online algorithms for the broker to set the prices and schedule the jobs on the private clouds, and for each private cloud to decide the numbers of VMs to lease. The broker achieves a time-averaged profit that is close to the offline optimum with complete information on future job arrivals and resource availability, while each private cloud earns the best that it can. Through theoretical analysis… Advisors/Committee Members: Lau, FCM, Wu, C.

Subjects/Keywords: Cloud computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Qiu, X. (2014). Dynamic utility maximization for multi-cloud based services. (Doctoral Dissertation). University of Hong Kong. Retrieved from Qiu, X. [邱炫佳]. (2014). Dynamic utility maximization for multi-cloud based services. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5270545 ; http://dx.doi.org/10.5353/th_b5270545 ; http://hdl.handle.net/10722/206669

Chicago Manual of Style (16^th Edition):

Qiu, Xuanjia. “Dynamic utility maximization for multi-cloud based services.” 2014. Doctoral Dissertation, University of Hong Kong. Accessed February 22, 2020. Qiu, X. [邱炫佳]. (2014). Dynamic utility maximization for multi-cloud based services. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5270545 ; http://dx.doi.org/10.5353/th_b5270545 ; http://hdl.handle.net/10722/206669.

MLA Handbook (7^th Edition):

Qiu, Xuanjia. “Dynamic utility maximization for multi-cloud based services.” 2014. Web. 22 Feb 2020.

Vancouver:

Qiu X. Dynamic utility maximization for multi-cloud based services. [Internet] [Doctoral dissertation]. University of Hong Kong; 2014. [cited 2020 Feb 22]. Available from: Qiu, X. [邱炫佳]. (2014). Dynamic utility maximization for multi-cloud based services. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5270545 ; http://dx.doi.org/10.5353/th_b5270545 ; http://hdl.handle.net/10722/206669.

Council of Science Editors:

Qiu X. Dynamic utility maximization for multi-cloud based services. [Doctoral Dissertation]. University of Hong Kong; 2014. Available from: Qiu, X. [邱炫佳]. (2014). Dynamic utility maximization for multi-cloud based services. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5270545 ; http://dx.doi.org/10.5353/th_b5270545 ; http://hdl.handle.net/10722/206669

Nelson Mandela Metropolitan University

12. Thomas, Godwin Dogara Ayenajeh. A framework for secure mobile computing in healthcare.

Degree: MTech, Faculty of Engineering, the Built Environment and Information Technology, 2007, Nelson Mandela Metropolitan University

URL: http://hdl.handle.net/10948/618

► Mobile computing is rapidly becoming part of healthcare’s electronic landscape, helping to provide better quality of care and reduced cost. While the technology provides numerous… (more)

▼ Mobile computing is rapidly becoming part of healthcare’s electronic landscape, helping to provide better quality of care and reduced cost. While the technology provides numerous advantages to the healthcare industry, it is not without risk. The size and portable nature of mobile computing devices present a highly vulnerable environment, which threaten the privacy and security of health information. Since these devices continually access possibly sensitive healthcare information, it is imperative that these devices are considered for security in order to meet regulatory compliance. In fact, the increase in government and industry regulation to ensure the privacy and security of health information, makes mobile security no longer just desirable, but mandatory. In addition, as healthcare becomes more aware of the need to reinforce patient confidence to gain competitive advantage, it makes mobile security desirable. Several guidelines regarding security best practices exist. Healthcare institutions are thus faced with matching the guidelines offered by best practices, with the legal and regulatory requirements. While this is a valuable question in general, this research focuses on the aspect of considering this question when considering the introduction of mobile computing into the healthcare environment. As a result, this research proposes a framework that will aid IT administrators in healthcare to ensure that privacy and security of health information is extended to mobile devices. The research uses a comparison between the best practices in ISO 17799:2005 and the regulatory requirements stipulated in HIPAA to provide a baseline for the mobile computing security model. The comparison ensures that the model meets healthcare specific industry requirement and international information security standard. In addition, the framework engages the Information Security Management System (ISMS) model based on the ISO 27000 standard. The framework, furthermore, points to existing technical security measurers associated with mobile computing. It is believed that the framework can assist in achieving mobile computing security that is compliant with the requirements in the healthcare industry Advisors/Committee Members: Botha, Reinhardt A Prof.

Subjects/Keywords: Mobile computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Thomas, G. D. A. (2007). A framework for secure mobile computing in healthcare. (Masters Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/618

Chicago Manual of Style (16^th Edition):

Thomas, Godwin Dogara Ayenajeh. “A framework for secure mobile computing in healthcare.” 2007. Masters Thesis, Nelson Mandela Metropolitan University. Accessed February 22, 2020. http://hdl.handle.net/10948/618.

MLA Handbook (7^th Edition):

Thomas, Godwin Dogara Ayenajeh. “A framework for secure mobile computing in healthcare.” 2007. Web. 22 Feb 2020.

Vancouver:

Thomas GDA. A framework for secure mobile computing in healthcare. [Internet] [Masters thesis]. Nelson Mandela Metropolitan University; 2007. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/10948/618.

Council of Science Editors:

Thomas GDA. A framework for secure mobile computing in healthcare. [Masters Thesis]. Nelson Mandela Metropolitan University; 2007. Available from: http://hdl.handle.net/10948/618

13. Kim, Yongtae. Energy Efficient and Error Resilient Neuromorphic Computing in VLSI.

Degree: 2013, Texas Digital Library

URL: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66614

► Realization of the conventional Von Neumann architecture faces increasing challenges due to growing process variations, device reliability and power consumption. As an appealing architectural solution,… (more)

▼ Realization of the conventional Von Neumann architecture faces increasing challenges due to growing process variations, device reliability and power consumption. As an appealing architectural solution, brain-inspired neuromorphic computing has drawn a great deal of research interest due to its potential improved scalability and power efficiency, and better suitability in processing complex tasks. Moreover, inherit error resilience in neuromorphic computing allows remarkable power and energy savings by exploiting approximate computing. This dissertation focuses on a scalable and energy efficient neurocomputing architecture which leverages emerging memristor nanodevices and a novel approximate arithmetic for cognitive computing. First, brain-inspired digital neuromorphic processor (DNP) architecture with memristive synaptic crossbar is presented for large scale spiking neural networks. We leverage memristor nanodevices to build an N ??N crossbar array to store not only multibit synaptic weight values but also the network configuration data with significantly reduced area cost. Additionally, the crossbar array is accessible both column- and row-wise to significantly expedite the synaptic weight update process for on-chip learning. The proposed digital pulse width modulator (PWM) readily creates a binary pulse with various durations to read and write the multilevel memristors with low cost. Our design integrates N digital leaky integrate-and-fire (LIF) silicon neurons to mimic their biological counterparts and the respective on-chip learning circuits for implementing spike timing dependent plasticity (STDP) learning rules. The proposed column based analog-to-digital conversion (ADC) scheme accumulates the pre-synaptic weights of a neuron efficiently and reduces silicon area by using only one shared arithmetic unit for processing LIF operations of all N neurons. With 256 silicon neurons, the learning circuits and 64K synapses, the power dissipation and area of our design are evaluated as 6.45 mW and 1.86 mm2, respectively, in a 90 nm CMOS technology. Furthermore, arithmetic computations contribute significantly to the overall processing time and power of the proposed architecture. In particular, addition and comparison operations represent 88.5% and 42.9% of processing time and power for digital LIF computation, respectively. Hence, by exploiting the built-in resilience of the presented neuromorphic architecture, we propose novel approximate adder and comparator designs to significantly reduce energy consumption with a very low er- ror rate. The significantly improved error rate and critical path delay stem from a novel carry prediction technique that leverages the information from less significant input bits in a parallel manner. An error magnitude reduction scheme is proposed to further reduce amount of error once detected with low cost in the proposed adder design. Implemented in a commercial 90 nm CMOS process, it is shown that the proposed adder is up to 2.4?? faster and 43% more energy efficient over… Advisors/Committee Members: Li, Peng (advisor).

Subjects/Keywords: neuromorphic computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kim, Y. (2013). Energy Efficient and Error Resilient Neuromorphic Computing in VLSI. (Thesis). Texas Digital Library. Retrieved from http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66614

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kim, Yongtae. “Energy Efficient and Error Resilient Neuromorphic Computing in VLSI.” 2013. Thesis, Texas Digital Library. Accessed February 22, 2020. http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66614.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kim, Yongtae. “Energy Efficient and Error Resilient Neuromorphic Computing in VLSI.” 2013. Web. 22 Feb 2020.

Vancouver:

Kim Y. Energy Efficient and Error Resilient Neuromorphic Computing in VLSI. [Internet] [Thesis]. Texas Digital Library; 2013. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66614.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kim Y. Energy Efficient and Error Resilient Neuromorphic Computing in VLSI. [Thesis]. Texas Digital Library; 2013. Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66614

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

14. Chung, Hyun-Chul. Information Infrastructures in Distributed Environments: Algorithms for Mobile Networks and Resource Allocation.

Degree: 2013, Texas Digital Library

URL: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66628

► A distributed system is a collection of computing entities that communicate with each other to solve some problem. Distributed systems impact almost every aspect of… (more)

▼ A distributed system is a collection of computing entities that communicate with each other to solve some problem. Distributed systems impact almost every aspect of daily life (e.g., cellular networks and the Internet); however, it is hard to develop services on top of distributed systems due to the unreliable nature of computing entities and communication. As handheld devices with wireless communication capabilities become increasingly popular, the task of providing services becomes even more challenging since dynamics, such as mobility, may cause the network topology to change frequently. One way to ease this task is to develop collections of information infrastructures which can serve as building blocks to design more complicated services and can be analyzed independently. The first part of the dissertation considers the dining philosophers problem (a generalization of the mutual exclusion problem) in static networks. A solution to the dining philosophers problem can be utilized when there is a need to prevent multiple nodes from accessing some shared resource simultaneously. We present two algorithms that solve the dining philosophers problem. The first algorithm considers an asynchronous message-passing model while the second one considers an asynchronous shared-memory model. Both algorithms are crash fault-tolerant in the sense that a node crash only affects its local neighborhood in the network. We utilize failure detectors (system services that provide some information about crash failures in the system) to achieve such crash fault-tolerance. In addition to crash fault-tolerance, the first algorithm provides fairness in accessing shared resources and the second algorithm tolerates transient failures (unexpected corruptions to the system state). Considering the message-passing model, we also provide a reduction such that given a crash fault-tolerant solution to our dining philosophers problem, we implement the failure detector that we have utilized to solve our dining philosophers problem. This reduction serves as the first step towards identifying the minimum information regarding crash failures that is required to solve the dining philosophers problem at hand. In the second part of this dissertation, we present information infrastructures for mobile ad hoc networks. In particular, we present solutions to the following problems in mobile ad hoc environments: (1) maintaining neighbor knowledge, (2) neighbor detection, and (3) leader election. The solutions to (1) and (3) consider a system with perfectly synchronized clocks while the solution to (2) considers a system with bounded clock drift. Services such as neighbor detection and maintaining neighbor knowledge can serve as a building block for applications that require point-to-point communication. A solution to the leader election problem can be used whenever there is a need for a unique coordinator in the system to perform a special task. Advisors/Committee Members: Welch, Jennifer L (advisor).

Subjects/Keywords: Distributed Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chung, H. (2013). Information Infrastructures in Distributed Environments: Algorithms for Mobile Networks and Resource Allocation. (Thesis). Texas Digital Library. Retrieved from http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66628

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chung, Hyun-Chul. “Information Infrastructures in Distributed Environments: Algorithms for Mobile Networks and Resource Allocation.” 2013. Thesis, Texas Digital Library. Accessed February 22, 2020. http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66628.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chung, Hyun-Chul. “Information Infrastructures in Distributed Environments: Algorithms for Mobile Networks and Resource Allocation.” 2013. Web. 22 Feb 2020.

Vancouver:

Chung H. Information Infrastructures in Distributed Environments: Algorithms for Mobile Networks and Resource Allocation. [Internet] [Thesis]. Texas Digital Library; 2013. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66628.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chung H. Information Infrastructures in Distributed Environments: Algorithms for Mobile Networks and Resource Allocation. [Thesis]. Texas Digital Library; 2013. Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66628

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

15. Yang, Yong. Efficient parallel genetic algorithms applied to numerical optimisation.

Degree: 2008, Southampton Solent University

URL: http://ssudl.solent.ac.uk/631/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490393

► This research is concerned with the optimisation of multi-modal numerical problems using genetic algorithms (GAs). GAs use randomised operators operating over a population of candidate… (more)

▼ This research is concerned with the optimisation of multi-modal numerical problems using genetic algorithms (GAs). GAs use randomised operators operating over a population of candidate solutions to generate new points in the search space. As the scale and complexity of target applications increase, run time becomes a major inhibitor. Parallel genetic algorithms (PGAs) have therefore become an important area of research. Coarse-grained implementations are one of the most popular models and many researchers are concerned primarily with this area. The island model was the only one class of parallel genetic algorithm on the coarse-grained processing platform. There are indiscriminate overlaps between sub-populations in the island model even if there is no communication between sub-populations. In order to determine whether the removal of the overlaps between sub-populations is beneficial, the partition model based on domain decomposition was motivated and showed that it can offer superior performance on a number of two dimensional test problems. However the partition model has a certain scalability problem. The main contribution of this thesis is to propose and develop an alternative approach, which replicates the beneficial behaviour of the partition model using more scalable techniques. It operates in a similar manner to the island model, but periodically performs a clustering analysis on each sub-population. The clustering analysis is used to identify regions of the search space in which more than one sub-population are sampling. The overlapping clusters are then merged and redistributed amongst sub-populations so that only one sub-population has samples in that region of the search space. It is shown that these overlaps between sub-populations are identified and removed by the clustering analysis without a priori domain knowledge. The performance of the new approach employing the clustering analysis is then compared with the island model and the partition model on a number of non-trivial problems. These experiments show that the new approach is robust, efficient and effective, and removes the scalability problem that prevents the wide application of the partition model.

Subjects/Keywords: 510; Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Yang, Y. (2008). Efficient parallel genetic algorithms applied to numerical optimisation. (Doctoral Dissertation). Southampton Solent University. Retrieved from http://ssudl.solent.ac.uk/631/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490393

Chicago Manual of Style (16^th Edition):

Yang, Yong. “Efficient parallel genetic algorithms applied to numerical optimisation.” 2008. Doctoral Dissertation, Southampton Solent University. Accessed February 22, 2020. http://ssudl.solent.ac.uk/631/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490393.

MLA Handbook (7^th Edition):

Yang, Yong. “Efficient parallel genetic algorithms applied to numerical optimisation.” 2008. Web. 22 Feb 2020.

Vancouver:

Yang Y. Efficient parallel genetic algorithms applied to numerical optimisation. [Internet] [Doctoral dissertation]. Southampton Solent University; 2008. [cited 2020 Feb 22]. Available from: http://ssudl.solent.ac.uk/631/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490393.

Council of Science Editors:

Yang Y. Efficient parallel genetic algorithms applied to numerical optimisation. [Doctoral Dissertation]. Southampton Solent University; 2008. Available from: http://ssudl.solent.ac.uk/631/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490393

16. Cocea, Mihaela. User modelling and adaptation in exploratory learning.

Degree: 2011, Birkbeck (University of London)

URL: http://eprints.port.ac.uk/12174/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574869

► User modelling in Exploratory Learning Environments (ELEs) is an emerging field with several challenges to be addressed. Due to the freedom given to learners, the… (more)

▼ User modelling in Exploratory Learning Environments (ELEs) is an emerging field with several challenges to be addressed. Due to the freedom given to learners, the amount of information generated is very large, making the modelling process very challenging. Consequently, only relevant information should be used in the user modelling process. This, however, leads to other challenges such as identification of relevant information, finding an optimal knowledge representation and defining an inference mechanism by which this knowledge is used in diagnosing the learner. This thesis addresses the challenges of user modelling in ELEs by monitoring learners' behaviour and taking into account only relevant actions in the context of an ELE for the domain of mathematical generalisation. An iterative approach was used, in line with the iterative design of the ELE. The modelling mechanism employed a modified version of Case-based Reasoning (CBR) and was evaluated using pedagogical scenarios and data from simulated and real students. This approach has the advantage of storing only relevant information and allows learner diagnosis during as well as at the end of a task. The user model was further exploited to support learning related activities, such as prioritising feedback and grouping for collaboration. For feedback prioritisation, a mechanism based on Multi-criteria Decision Making was developed and tested with the help of educational experts. The grouping for collaboration approach was inspired from Group Technology, a method from cellular manufacturing systems, and its testing showed it produces meaningful groups. Both the feedback prioritisation and the grouping for collaboration mechanisms propose solutions that are particularly relevant for ELEs by considering pertinent criteria for this type of learning. To ensure optimal coverage of the knowledge base, the user modelling approach was enhanced with adaptive mechanisms for expanding the knowledge base, which was tested on real and simulated data. This approach ensures that learner diagnostic is possible when the initial knowledge base is small and/or new behaviours are encountered over time.

Subjects/Keywords: Computing; Education

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cocea, M. (2011). User modelling and adaptation in exploratory learning. (Doctoral Dissertation). Birkbeck (University of London). Retrieved from http://eprints.port.ac.uk/12174/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574869

Chicago Manual of Style (16^th Edition):

Cocea, Mihaela. “User modelling and adaptation in exploratory learning.” 2011. Doctoral Dissertation, Birkbeck (University of London). Accessed February 22, 2020. http://eprints.port.ac.uk/12174/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574869.

MLA Handbook (7^th Edition):

Cocea, Mihaela. “User modelling and adaptation in exploratory learning.” 2011. Web. 22 Feb 2020.

Vancouver:

Cocea M. User modelling and adaptation in exploratory learning. [Internet] [Doctoral dissertation]. Birkbeck (University of London); 2011. [cited 2020 Feb 22]. Available from: http://eprints.port.ac.uk/12174/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574869.

Council of Science Editors:

Cocea M. User modelling and adaptation in exploratory learning. [Doctoral Dissertation]. Birkbeck (University of London); 2011. Available from: http://eprints.port.ac.uk/12174/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574869

University of New Mexico

17. Fanning, M. Leigh. DNA Chemical Reaction Network Design Synthesis and Compilation.

Degree: Department of Computer Science, 2014, University of New Mexico

URL: http://hdl.handle.net/1928/25777

► The advantages of biomolecular computing include 1) the ability to interface with, monitor, and intelligently protect and maintain the functionality of living systems, 2)… (more)

Subjects/Keywords: DNA Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Fanning, M. L. (2014). DNA Chemical Reaction Network Design Synthesis and Compilation. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/25777

Chicago Manual of Style (16^th Edition):

Fanning, M Leigh. “DNA Chemical Reaction Network Design Synthesis and Compilation.” 2014. Doctoral Dissertation, University of New Mexico. Accessed February 22, 2020. http://hdl.handle.net/1928/25777.

MLA Handbook (7^th Edition):

Fanning, M Leigh. “DNA Chemical Reaction Network Design Synthesis and Compilation.” 2014. Web. 22 Feb 2020.

Vancouver:

Fanning ML. DNA Chemical Reaction Network Design Synthesis and Compilation. [Internet] [Doctoral dissertation]. University of New Mexico; 2014. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/1928/25777.

Council of Science Editors:

Fanning ML. DNA Chemical Reaction Network Design Synthesis and Compilation. [Doctoral Dissertation]. University of New Mexico; 2014. Available from: http://hdl.handle.net/1928/25777

18. Mace, Jonathan Christopher. A Universal Architecture for Cross-Cutting Tools in Distributed Systems.

Degree: Department of Computer Science, 2018, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:792914/

► Recent research has proposed a variety of cross-cutting tools to help monitor and troubleshoot end-to-end behaviors in distributed systems. However, most prior tools focus on… (more)

▼ Recent research has proposed a variety of cross-cutting tools to help monitor and troubleshoot end-to-end behaviors in distributed systems. However, most prior tools focus on data collection and aggregation, and treat analysis as a distinct step to be performed later, offline. This restricts the applicability of such tools to only doing post-facto analysis. However, this is not a fundamental limitation. Recent research has proposed tools that integrate analysis and decision-making at runtime, to directly enforce end-to-end behaviors and adapt to events. In this thesis I present two new applications of cross-cutting tools to previously unexplored domains: resource management, and dynamic monitoring. Retro, a cross-cutting tool for resource management, provides end-to-end performance guarantees by propagating tenant identifiers with executions, and using them to attribute resource consumption and enforce throttling decisions. Pivot Tracing, a cross-cutting tool for dynamic monitoring, dynamically monitors metrics and contextualizes them based on properties deriving from arbitrary points in an end-to-end execution. Retro and Pivot Tracing illustrate the potential breadth of cross-cutting tools in providing visibility and control over distributed system behaviors. From this, I identify and characterize the common challenges associated with developing and deploying cross-cutting tools. This motivates the design of baggage contexts, a general-purpose context that can be shared and reused by different cross-cutting tools. Baggage contexts abstract and encapsulate components that are otherwise duplicated by most cross-cutting tools, and decouples the design of tools into separate layers that can be addressed independently by different teams of developers. The potential impact of a common architecture for cross-cutting tools is significant. It would enable more pervasive, more useful, and more diverse cross-cutting tools, and make it easier for developers to defer development-time decisions about which tools to deploy and support. Advisors/Committee Members: Fonseca, Rodrigo (Advisor), Herlihy, Maurice (Reader), Krishnamurthi, Shriram (Reader).

Subjects/Keywords: Cloud computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mace, J. C. (2018). A Universal Architecture for Cross-Cutting Tools in Distributed Systems. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:792914/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mace, Jonathan Christopher. “A Universal Architecture for Cross-Cutting Tools in Distributed Systems.” 2018. Thesis, Brown University. Accessed February 22, 2020. https://repository.library.brown.edu/studio/item/bdr:792914/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mace, Jonathan Christopher. “A Universal Architecture for Cross-Cutting Tools in Distributed Systems.” 2018. Web. 22 Feb 2020.

Vancouver:

Mace JC. A Universal Architecture for Cross-Cutting Tools in Distributed Systems. [Internet] [Thesis]. Brown University; 2018. [cited 2020 Feb 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:792914/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mace JC. A Universal Architecture for Cross-Cutting Tools in Distributed Systems. [Thesis]. Brown University; 2018. Available from: https://repository.library.brown.edu/studio/item/bdr:792914/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

19. Nepal, Kumud. New Directions for Design-Space Exploration of Low-Power Hardware Accelerators.

Degree: PhD, Electrical Sciences and Computer Engineering, 2015, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:419419/

► Hardware accelerators and custom computing platforms are being widely used in high-throughput computation domains. With the wide usage, there is also an increasing need to… (more)

▼ Hardware accelerators and custom computing platforms are being widely used in high-throughput computation domains. With the wide usage, there is also an increasing need to operate these hardware accelerators in resource-constrained environments. In this dissertation work, we address two different ways of exploring possibilities for producing low-area and low-power hardware accelerators. First, we propose an analytical modeling of design metrics such as area, power, and throughput for hardware accelerators. Accelerators have various tunable implementation parameters, both at the algorithm and hardware levels. Physically synthesizing every possible design permutation to discover optimum implementations is highly inefficient given the exponentially large search space. We propose sampling a small fraction of the design space and using these samples to train analytical models that will accurately predict area, power, throughput for other unexplored parameter combinations. By doing this analytically, we take away a bulk of the time-consuming synthesis process. We also use these mathematical models to accurately formulate various multi-objective optimization trade-offs between area, power, and output accuracy. For the second part of this dissertation, we pursue an idea we learned from the first part — that computational accuracy of circuit implementations within certain application domains can be traded-off to make accelerators consume less area and power. We introduce a novel idea for automated synthesis of approximate circuits directly from their behavioral descriptions. By applying transformations that introduce a controlled amount of error, we make a number of approximate variants of the original circuits. We also realize a streamlined design space exploration process so that the creation of newer approximate variants does not cause an exponential increase in the design space. Finally, we study various techniques to expand the search scope for better approximate designs and achieve significantly better power savings without additional loss in output accuracy. We also propose a first-of-its-kind methodology to perform targeted approximations on timing-critical paths of a custom circuit hardware accelerator so as to reduce its delay. We use this delay reduction to use standard voltage scaling and make additional savings on power consumption. Advisors/Committee Members: Bahar, Iris (Director), Reda, Sherief (Director), Felzenszwalb, Pedro (Reader).

Subjects/Keywords: approximate computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nepal, K. (2015). New Directions for Design-Space Exploration of Low-Power Hardware Accelerators. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:419419/

Chicago Manual of Style (16^th Edition):

Nepal, Kumud. “New Directions for Design-Space Exploration of Low-Power Hardware Accelerators.” 2015. Doctoral Dissertation, Brown University. Accessed February 22, 2020. https://repository.library.brown.edu/studio/item/bdr:419419/.

MLA Handbook (7^th Edition):

Nepal, Kumud. “New Directions for Design-Space Exploration of Low-Power Hardware Accelerators.” 2015. Web. 22 Feb 2020.

Vancouver:

Nepal K. New Directions for Design-Space Exploration of Low-Power Hardware Accelerators. [Internet] [Doctoral dissertation]. Brown University; 2015. [cited 2020 Feb 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:419419/.

Council of Science Editors:

Nepal K. New Directions for Design-Space Exploration of Low-Power Hardware Accelerators. [Doctoral Dissertation]. Brown University; 2015. Available from: https://repository.library.brown.edu/studio/item/bdr:419419/

University of Nairobi

20. Nyakeya, Dennis Maige. Adoption of cloud computing by the NGO Sector In Kenya .

Degree: 2010, University of Nairobi

URL: http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/13080

► Innovations are necessary to ride the inevitable tide of change. Most of organizations are striving to reduce their computing cost through the means of virtualization.… (more)

▼ Innovations are necessary to ride the inevitable tide of change. Most of organizations are striving to reduce their computing cost through the means of virtualization. This demand of reducing the computing cost has led to the innovation of Cloud Computing. Cloud Computing offers better computing through improved utilization and reduced administration and infrastructure costs. Cloud Computing is the sum of Software as a Service (SaaS), Infrastructure as a Service (IaaS) and Platform as a service (PaaS). In a nutshell, it’s a computing model based on utility Computing. Cloud Computing is still at its infant stage and a relatively new technology for the organizations especially the non-governmental organizations in Kenya. Therefore, most of the organizations are not very confident and ready to adopt it. This research paper tackles this issue for organizations in terms of adoptability of the technology especially the NGO sector in Kenya. In this paper the researcher discusses the perceived benefits, awareness levels, drivers of adoption as well as barriers to cloud computing adoption and assess the extent to which this technology has been adopted in the international NGOs in Kenya. This study revealed the awareness levels to be overwhelming and further validated that economical, technical, strategic and functional being the key drivers of adoption. Lack of clear strategy, lack of ownership and loss of confidentiality were also endorsed as key barriers to adoption. Majority of the NGOs had more than 71% computerization levels with a paltry 26% of this having adopted the cloud. Cloud providers key concerns according to the study include security, the perceived loss of ownership and fear of confidentiality breach so us to encourage organizations to take up more of the cloud services on offer. Organizations should also be deliberate to capture cloud computing in their strategies to motivate adoption. The intention of this research is to provide information about cloud computing that will assist those interested non-governmental organizations (NGOs) in this technology in making well-informed decisions. NGOs must become aware of the predictors that if adequately examined will indicate successful adoption of cloud computing for NGOs in Kenya.

Subjects/Keywords: cloud computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nyakeya, D. M. (2010). Adoption of cloud computing by the NGO Sector In Kenya . (Thesis). University of Nairobi. Retrieved from http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/13080

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nyakeya, Dennis Maige. “Adoption of cloud computing by the NGO Sector In Kenya .” 2010. Thesis, University of Nairobi. Accessed February 22, 2020. http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/13080.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nyakeya, Dennis Maige. “Adoption of cloud computing by the NGO Sector In Kenya .” 2010. Web. 22 Feb 2020.

Vancouver:

Nyakeya DM. Adoption of cloud computing by the NGO Sector In Kenya . [Internet] [Thesis]. University of Nairobi; 2010. [cited 2020 Feb 22]. Available from: http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/13080.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nyakeya DM. Adoption of cloud computing by the NGO Sector In Kenya . [Thesis]. University of Nairobi; 2010. Available from: http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/13080

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Nairobi

21. Addero, Edgar Otieno. Machine learning techniques for optimizing the provision of storage resources in cloud computing infrastructure as a service (iaas): a comparative study .

Degree: 2014, University of Nairobi

URL: http://hdl.handle.net/11295/76305

► Cloud computing is a very popular field at present which is growing very fast and the future of the field seems really wide. With progressive… (more)

▼ Cloud computing is a very popular field at present which is growing very fast and the future of the field seems really wide. With progressive spotlight on cloud computing as a possible solution for a flexible, on-demand computing infrastructure for lots of applications, many companies and unions have started using it. Obviously, cloud computing has been recognized as a model for supporting infrastructure, platform and software services. Within cloud systems, massive distributed data center infrastructure, virtualized physical resources, virtualized middleware platform such as VMware as well as applications are all being provided and consumed as services. The cloud clients should get good and reliable services from a provider and the provider should allocate the resources in a proper way so as to render good services to a client. This brings about the problem of optimization where clients request for more services than they actually require leading to wastage of the cloud storage resource .This demands for optimization both on the part of the client and the cloud service provider. This has lead to increased research in the various techniques that can be used for resource allocation within cloud services. This research focuses on the analysis of machine learning as a technique that can be used to predict the cloud storage service request patterns from the clients. The research focuses on a review of machine learning as a technique that can be used to predict and therefore optimize the user storage resource demand and usage for the case of cloud computing storage IaaS. Data on cloud storage resource usage was subjected to experiments using machine learning techniques so as to determine which give the most accurate prediction. Some of these machine learning techniques to be reviewed in this research include linear regression, artificial neural networks (ANN), support vector machines (SVM).From the experiments done in this research, it can be concluded that the use of support vector machine algorithm (SVM) proves to be the best algorithm for learning the storage resource usage patterns and predicting their future usage so as to enable better resource budgeting.

Subjects/Keywords: Cloud Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Addero, E. O. (2014). Machine learning techniques for optimizing the provision of storage resources in cloud computing infrastructure as a service (iaas): a comparative study . (Thesis). University of Nairobi. Retrieved from http://hdl.handle.net/11295/76305

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Addero, Edgar Otieno. “Machine learning techniques for optimizing the provision of storage resources in cloud computing infrastructure as a service (iaas): a comparative study .” 2014. Thesis, University of Nairobi. Accessed February 22, 2020. http://hdl.handle.net/11295/76305.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Addero, Edgar Otieno. “Machine learning techniques for optimizing the provision of storage resources in cloud computing infrastructure as a service (iaas): a comparative study .” 2014. Web. 22 Feb 2020.

Vancouver:

Addero EO. Machine learning techniques for optimizing the provision of storage resources in cloud computing infrastructure as a service (iaas): a comparative study . [Internet] [Thesis]. University of Nairobi; 2014. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/11295/76305.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Addero EO. Machine learning techniques for optimizing the provision of storage resources in cloud computing infrastructure as a service (iaas): a comparative study . [Thesis]. University of Nairobi; 2014. Available from: http://hdl.handle.net/11295/76305

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Ryerson University

22. Peesary, Shraddha, R. An optimal broker design for inter-cloud systems.

Degree: 2015, Ryerson University

URL: https://digital.library.ryerson.ca/islandora/object/RULA%3A3756

► In the next generation of Cloud computing systems, it is expected that multiple Cloud Service Providers (CSPs) will cooperate together to advertise their services and… (more)

Subjects/Keywords: Cloud computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Peesary, Shraddha, R. (2015). An optimal broker design for inter-cloud systems. (Thesis). Ryerson University. Retrieved from https://digital.library.ryerson.ca/islandora/object/RULA%3A3756

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Peesary, Shraddha, R. “An optimal broker design for inter-cloud systems.” 2015. Thesis, Ryerson University. Accessed February 22, 2020. https://digital.library.ryerson.ca/islandora/object/RULA%3A3756.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Peesary, Shraddha, R. “An optimal broker design for inter-cloud systems.” 2015. Web. 22 Feb 2020.

Vancouver:

Peesary, Shraddha R. An optimal broker design for inter-cloud systems. [Internet] [Thesis]. Ryerson University; 2015. [cited 2020 Feb 22]. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A3756.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Peesary, Shraddha R. An optimal broker design for inter-cloud systems. [Thesis]. Ryerson University; 2015. Available from: https://digital.library.ryerson.ca/islandora/object/RULA%3A3756

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Victoria

23. Guo, Yunyong. A Cloud Computing Based Platform for Geographically Distributed Health Data Mining.

Degree: School of Health Information Science, 2013, University of Victoria

URL: http://hdl.handle.net/1828/4890

► With cloud computing emerging in recent years, more and more interest has been sparked from a variety of institutions, organizations and individual users, as they… (more)

Subjects/Keywords: Cloud Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Guo, Y. (2013). A Cloud Computing Based Platform for Geographically Distributed Health Data Mining. (Masters Thesis). University of Victoria. Retrieved from http://hdl.handle.net/1828/4890

Chicago Manual of Style (16^th Edition):

Guo, Yunyong. “A Cloud Computing Based Platform for Geographically Distributed Health Data Mining.” 2013. Masters Thesis, University of Victoria. Accessed February 22, 2020. http://hdl.handle.net/1828/4890.

MLA Handbook (7^th Edition):

Guo, Yunyong. “A Cloud Computing Based Platform for Geographically Distributed Health Data Mining.” 2013. Web. 22 Feb 2020.

Vancouver:

Guo Y. A Cloud Computing Based Platform for Geographically Distributed Health Data Mining. [Internet] [Masters thesis]. University of Victoria; 2013. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/1828/4890.

Council of Science Editors:

Guo Y. A Cloud Computing Based Platform for Geographically Distributed Health Data Mining. [Masters Thesis]. University of Victoria; 2013. Available from: http://hdl.handle.net/1828/4890

University of Saskatchewan

24. Hoang, Nam. Graphy: Exploring the potential of the Contacts application.

Degree: 2016, University of Saskatchewan

URL: http://hdl.handle.net/10388/7284

► The number of mobile devices is growing very fast. Smart phones and tablets are, step by step, replacing desktops and laptops as the primary method… (more)

Subjects/Keywords: Mobile Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hoang, N. (2016). Graphy: Exploring the potential of the Contacts application. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/7284

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hoang, Nam. “Graphy: Exploring the potential of the Contacts application.” 2016. Thesis, University of Saskatchewan. Accessed February 22, 2020. http://hdl.handle.net/10388/7284.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hoang, Nam. “Graphy: Exploring the potential of the Contacts application.” 2016. Web. 22 Feb 2020.

Vancouver:

Hoang N. Graphy: Exploring the potential of the Contacts application. [Internet] [Thesis]. University of Saskatchewan; 2016. [cited 2020 Feb 22]. Available from: http://hdl.handle.net/10388/7284.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hoang N. Graphy: Exploring the potential of the Contacts application. [Thesis]. University of Saskatchewan; 2016. Available from: http://hdl.handle.net/10388/7284

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Victoria

25. Bergen, Andreas Christoph. Energy adaptive digital ecosystems.

Degree: Department of Computer Science, 2017, University of Victoria

URL: https://dspace.library.uvic.ca//handle/1828/8868

► Since the turn of the century, the proliferation of virtualization and cloud computing has led to an increase in data centres and consequently an increase… (more)

▼ Since the turn of the century, the proliferation of virtualization and cloud computing has led to an increase in data centres and consequently an increase in power consumption for computing. Today, approximately 2% of global energy consumption is attributed to data centres alone. As a result, optimizing power usage effectiveness in enterprise data centres has become a laudable goal and a critical requirement in IT operations all over the world. While a significant body of research exists to measure, monitor, and control the “greenness” level of hardware components, significant research is needed to relate hardware energy consumption to energy consumption stemming from (software) program execution. In this dissertation, we argue that the true energy cost of program execution must focus on the digital ecosystem within which a particular software program is executed. We investigate the interplay between energy consumption, task scheduling and execution decision making using dynamic runtime models of digital ecosystems based on the execution context of software. Single instances of software applications are no longer confined to a single device or machine. Instead software commonly interacts with resources and services outside of its own hardware unit. The scope of this interaction defines the application’s digital ecosystem. Smartphones interact with cloud resources; cloud resources include databases, specialized compute or storage clouds, specialized hardware and virtual machines (VMs). Combining processes of varying complexity with varying resource allocations produces different energy consumption levels. The challenge is to investigate the variability of software process orchestration based on a power consumption framework to accrue and optimize energy savings in digital ecosystems. The contributions of this dissertation include: i) an adaptive energy consumption framework; ii) self-adaptive energy management systems based on this framework; iii) deployment mechanisms for applications to use this framework; iv) models at runtime models for self-adaptive energy management systems. Our ultimate goal is to develop smart, self-adaptive, green computing techniques, such as adaptive job scheduling and resource provisioning, to reduce overall power consumption in data centres, on individual devices (e.g., mobile, desktop, laptop or server), and in digital ecosystems. Advisors/Committee Members: Coady, Yvonne (supervisor), Müller, Hausi A. (supervisor).

Subjects/Keywords: Green Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bergen, A. C. (2017). Energy adaptive digital ecosystems. (Thesis). University of Victoria. Retrieved from https://dspace.library.uvic.ca//handle/1828/8868

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bergen, Andreas Christoph. “Energy adaptive digital ecosystems.” 2017. Thesis, University of Victoria. Accessed February 22, 2020. https://dspace.library.uvic.ca//handle/1828/8868.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bergen, Andreas Christoph. “Energy adaptive digital ecosystems.” 2017. Web. 22 Feb 2020.

Vancouver:

Bergen AC. Energy adaptive digital ecosystems. [Internet] [Thesis]. University of Victoria; 2017. [cited 2020 Feb 22]. Available from: https://dspace.library.uvic.ca//handle/1828/8868.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bergen AC. Energy adaptive digital ecosystems. [Thesis]. University of Victoria; 2017. Available from: https://dspace.library.uvic.ca//handle/1828/8868

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Portsmouth

26. Ancient, Claire. Delivering positive reminiscence through a ubiquitous device application designed for people living with dementia and their care-givers.

Degree: PhD, 2016, University of Portsmouth

URL: https://researchportal.port.ac.uk/portal/en/theses/delivering-positive-reminiscence-through-a-ubiquitous-device-application-designed-for-people-living-with-dementia-and-their-caregivers(9ba79cf2-c29f-4743-a9b7-331e4e3ffb5c).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.698110

► Dementia is a progressive condition which is synonymous with cognitive decline. In the UK, it is estimated that the number of people living with the… (more)

▼ Dementia is a progressive condition which is synonymous with cognitive decline. In the UK, it is estimated that the number of people living with the condition is 800,000, a figure which is anticipated to rise above 1 million people before 2021. Symptoms of dementia include short-term memory loss, communication problems and difficulties with reasoning. In addition to these symptoms, many people living with dementia experience neuropsychiatric symptoms, including depression and apathy. Positive reminiscence is a non-pharmacological intervention which has the potential to improve the happiness of people living with dementia. Reminiscence utilises prompts, such as music and photographs, to evoke the long-term memories of the person with dementia, a capacity which is the last to be affected by the condition. Generally, reminiscence uses generic prompts, however, there is research suggesting that personalised memories lead to greater engagement in the activity. This research uses a mixed methods approach to develop a theory-based reminiscence program which can be implemented on a tablet computer and evaluate the potential for it to be accepted by people living with dementia and their care-givers. An initial study within this project found that personalised memories which use photographs, stories and music as stimuli are effective at evoking positive emotions in people over the age of 50. The research then develops a set of guidelines which can be used to design technology interaction to ensure that it is dementia friendly. Further research used these two areas of theory which have been developed to design and implement an application to facilitate the reminiscence program. The acceptance this application is then qualitatively assessed using people living with dementia and their informal care-givers. Results suggest there is the potential for the tablet application to be accepted by the target user group. This thesis makes a number of contributions to knowledge including the most effective types of stimuli and memories to evoke positive emotions, guidelines for dementia friendly technology interaction, and the potential for the theory-based reminiscence program implemented on a tablet computer to be accepted by people living with dementia and their care-givers.

Subjects/Keywords: 616.8; Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ancient, C. (2016). Delivering positive reminiscence through a ubiquitous device application designed for people living with dementia and their care-givers. (Doctoral Dissertation). University of Portsmouth. Retrieved from https://researchportal.port.ac.uk/portal/en/theses/delivering-positive-reminiscence-through-a-ubiquitous-device-application-designed-for-people-living-with-dementia-and-their-caregivers(9ba79cf2-c29f-4743-a9b7-331e4e3ffb5c).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.698110

Chicago Manual of Style (16^th Edition):

Ancient, Claire. “Delivering positive reminiscence through a ubiquitous device application designed for people living with dementia and their care-givers.” 2016. Doctoral Dissertation, University of Portsmouth. Accessed February 22, 2020. https://researchportal.port.ac.uk/portal/en/theses/delivering-positive-reminiscence-through-a-ubiquitous-device-application-designed-for-people-living-with-dementia-and-their-caregivers(9ba79cf2-c29f-4743-a9b7-331e4e3ffb5c).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.698110.

MLA Handbook (7^th Edition):

Ancient, Claire. “Delivering positive reminiscence through a ubiquitous device application designed for people living with dementia and their care-givers.” 2016. Web. 22 Feb 2020.

Vancouver:

Ancient C. Delivering positive reminiscence through a ubiquitous device application designed for people living with dementia and their care-givers. [Internet] [Doctoral dissertation]. University of Portsmouth; 2016. [cited 2020 Feb 22]. Available from: https://researchportal.port.ac.uk/portal/en/theses/delivering-positive-reminiscence-through-a-ubiquitous-device-application-designed-for-people-living-with-dementia-and-their-caregivers(9ba79cf2-c29f-4743-a9b7-331e4e3ffb5c).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.698110.

Council of Science Editors:

Ancient C. Delivering positive reminiscence through a ubiquitous device application designed for people living with dementia and their care-givers. [Doctoral Dissertation]. University of Portsmouth; 2016. Available from: https://researchportal.port.ac.uk/portal/en/theses/delivering-positive-reminiscence-through-a-ubiquitous-device-application-designed-for-people-living-with-dementia-and-their-caregivers(9ba79cf2-c29f-4743-a9b7-331e4e3ffb5c).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.698110

27. Lagasse, Annabel. An exploration of the creative challenges in representing human movement in digital animation : exploring the range and limits of human and quasi-human expression in animation and related disciplines, defined by technology, nature and imagination.

Degree: PhD, 2015, Southampton Solent University

URL: http://ssudl.solent.ac.uk/3803/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.741757

► The research began from Mori’s Uncanny Valley hypothesis, which suggests that new technologies present significant challenge in animation for human simulation? If so, how can… (more)

▼ The research began from Mori’s Uncanny Valley hypothesis, which suggests that new technologies present significant challenge in animation for human simulation? If so, how can we better identify and engender an appealing, aesthetic reality that both Mori and Disney recommend in the context of digital animation? Can alternative mimodynamic methods used by Lecoq (in creative education) assist animation process, justifying a contribution to knowledge? The thesis explores the significance of Mori’s theory of the Uncanny response by examining current opinion from within science and animation production, as well as analysing recent cultural and technological change. Disney’s original Twelve Principles of Animation are re-evaluated, in the light of new additions (from Industry) and to see how far they address current concerns. Research into the influence of artistic (and social) trends on digital animation: aims to establish what constitutes appeal and aesthetic reality and whether views change. Research into body language (chiefly P. Eckman, Chap. 5 Ref. 1, and J. Navarro Chap. 5 Ref. 3) assesses newly uncovered insights and analyses the possible outcomes of knowledge or alternatively, knowledge gaps. This evolving science is also studied to assess the range and limits of human gesture and enable comparison between real and virtual movement. Performance methods are explored (particularly mimodynamic methods), to establish whether they provide any unique creative outcomes, relevant to animation. Diversity of research sources aims to reflect the interdisciplinary nature and complexity of animation and those attracted to it. The theoretical framework mirrors most closely design history; quality being partly defined by the scientific theory of evolutionary aesthetics. The research highlighted the importance of imagination and sensitive design, in creating movement sequences with digital tools. However exploration of cultural trends ascertained that new technology and the new realist aesthetic often contradicted design principles. Study of body language proved instructive but highlighted its limitations for creative invention. Finally, a review of performance practice validated the special relevance of mimodynamic method for animation production, training and critique. This research represents an important progression in the understanding and appreciation of digital character animation and an alternative creative approach to animation practice.

Subjects/Keywords: 004; Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lagasse, A. (2015). An exploration of the creative challenges in representing human movement in digital animation : exploring the range and limits of human and quasi-human expression in animation and related disciplines, defined by technology, nature and imagination. (Doctoral Dissertation). Southampton Solent University. Retrieved from http://ssudl.solent.ac.uk/3803/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.741757

Chicago Manual of Style (16^th Edition):

Lagasse, Annabel. “An exploration of the creative challenges in representing human movement in digital animation : exploring the range and limits of human and quasi-human expression in animation and related disciplines, defined by technology, nature and imagination.” 2015. Doctoral Dissertation, Southampton Solent University. Accessed February 22, 2020. http://ssudl.solent.ac.uk/3803/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.741757.

MLA Handbook (7^th Edition):

Lagasse, Annabel. “An exploration of the creative challenges in representing human movement in digital animation : exploring the range and limits of human and quasi-human expression in animation and related disciplines, defined by technology, nature and imagination.” 2015. Web. 22 Feb 2020.

Vancouver:

Lagasse A. An exploration of the creative challenges in representing human movement in digital animation : exploring the range and limits of human and quasi-human expression in animation and related disciplines, defined by technology, nature and imagination. [Internet] [Doctoral dissertation]. Southampton Solent University; 2015. [cited 2020 Feb 22]. Available from: http://ssudl.solent.ac.uk/3803/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.741757.

Council of Science Editors:

Lagasse A. An exploration of the creative challenges in representing human movement in digital animation : exploring the range and limits of human and quasi-human expression in animation and related disciplines, defined by technology, nature and imagination. [Doctoral Dissertation]. Southampton Solent University; 2015. Available from: http://ssudl.solent.ac.uk/3803/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.741757

University of Portsmouth

28. Iluyemi, Adesina. National e-health innovation : conduct of international e-health technology transfers in Africa.

Degree: PhD, 2012, University of Portsmouth

URL: https://researchportal.port.ac.uk/portal/en/theses/national-ehealth-innovation(fba79bf3-ec85-429a-bc65-76bbfd3a3c00).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.588618

► The sociology and economics of the conduct of international e-health technology transfers (IeTTs) is examined. Most African countries are perennial recipients with variations in their… (more)

▼ The sociology and economics of the conduct of international e-health technology transfers (IeTTs) is examined. Most African countries are perennial recipients with variations in their domestic e-health utilisation, development and implementation. We identify, explore, and demonstrate how complex and interlinked global, continental, national and subnational actions and institutions condition their national e-health implementations. Multidisciplinary literatures are from national e-health implementations, national innovation system (NIS) interactive learning, international technology transfers, global development and globalisation. Methodically, a unique combination of middle-range and moderate Science and Technology Studies constructivism, NIS institutionalism and Deleuzian poststructuralist narrative is employed. The conduct of IeTTs is characterised by technological path dependency, history, complexity, power, politics, multiple identities, self-interests and contestations in complex global and transnational interactions. Recipients‘ exercises of National Agency mirror their varied domestic technology acquisition dynamics and trajectories. Successful transfers are institutionally conditioned by interactions of global geopolitics, fragmented continental governance and national reticence. Agential asymmetry that results, accounts for why most recipients are variably struggling in their technology acquisitions. The exercise of National Agency is paramount. National economic size and maturity of extant national innovation capacity can determine if a recipient can acquire domestic e-health innovation and industrial competences. Actions taken by National governments, can strategically determine if technologies are accumulated and technical knowledge assimilated, for addressing the challenges of technology inappropriateness, incompatibilities and obsolescence encountered during subnational utilisations. We contend that implementing a national e-health infrastructure is a long-term and large-scale institutional engineering endeavour. Cumulative advantage explains difference between Schumpeter and Schumacher on e-health technology design and production. A Schumpeterian domestic industrial model of hi-tech e-health technology development, rather than a cosmopolitan Schumacher consumerist one, is proposed. Whilst, appreciating that Schumacher on incremental accumulation and assimilation from small-scale technological implementations can be instrumental. Uniquely, we identify that global geopolitical contention between global west and east economies and competitive global markets and global technoeconomic changes can either condition scale and depth of domestic acquisition. Nevertheless, these conditions and events have historically and contemporaneously shaped global e-health innovations. In a Schumpeterian evolutionary sense, Satcom technologies that powered e-health services in the past are now being substituted by mobile ones. This technological transition is bringing about a convergence of consumer electronics (i.e.…

Subjects/Keywords: 362.10285; Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Iluyemi, A. (2012). National e-health innovation : conduct of international e-health technology transfers in Africa. (Doctoral Dissertation). University of Portsmouth. Retrieved from https://researchportal.port.ac.uk/portal/en/theses/national-ehealth-innovation(fba79bf3-ec85-429a-bc65-76bbfd3a3c00).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.588618

Chicago Manual of Style (16^th Edition):

Iluyemi, Adesina. “National e-health innovation : conduct of international e-health technology transfers in Africa.” 2012. Doctoral Dissertation, University of Portsmouth. Accessed February 22, 2020. https://researchportal.port.ac.uk/portal/en/theses/national-ehealth-innovation(fba79bf3-ec85-429a-bc65-76bbfd3a3c00).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.588618.

MLA Handbook (7^th Edition):

Iluyemi, Adesina. “National e-health innovation : conduct of international e-health technology transfers in Africa.” 2012. Web. 22 Feb 2020.

Vancouver:

Iluyemi A. National e-health innovation : conduct of international e-health technology transfers in Africa. [Internet] [Doctoral dissertation]. University of Portsmouth; 2012. [cited 2020 Feb 22]. Available from: https://researchportal.port.ac.uk/portal/en/theses/national-ehealth-innovation(fba79bf3-ec85-429a-bc65-76bbfd3a3c00).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.588618.

Council of Science Editors:

Iluyemi A. National e-health innovation : conduct of international e-health technology transfers in Africa. [Doctoral Dissertation]. University of Portsmouth; 2012. Available from: https://researchportal.port.ac.uk/portal/en/theses/national-ehealth-innovation(fba79bf3-ec85-429a-bc65-76bbfd3a3c00).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.588618

University of Portsmouth

29. Khalind, Omed Saleem. New methods to improve the pixel domain steganography, steganalysis, and simplify the assessment of steganalysis tools.

Degree: PhD, 2015, University of Portsmouth

URL: https://researchportal.port.ac.uk/portal/en/theses/new-methods-to-improve-the-pixel-domain-steganography-steganalysis-and-simplify-the-assessment-of-steganalysis-tools(6431f03a-c2a1-477e-bbd4-e1db7c2ed6df).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690075

► Unlike other security methods, steganography hides the very existence of secret messages rather than their content only. Both steganography and steganalysis are strongly related to… (more)

▼ Unlike other security methods, steganography hides the very existence of secret messages rather than their content only. Both steganography and steganalysis are strongly related to each other, the new steganographic methods should be evaluated with current steganalysis methods and vice-versa. Since steganography is considered broken when the stego object is recognised, undetectability would be the most important property of any steganographic system. Digital image files are excellent media for steganography, as they have redundancy in their representation. Also, the most widely used method of image steganography is the least significant bit (LSB) embedding. This thesis investigates the latest methods of pixel domain steganography and provides new efficient approaches to improve them in three perspectives: embedding, detection, and the digital forensics investigation process. Firstly, the probability of detection is considered for non-adaptive LSB and 2LSB image steganography even for the embedding rate of 1. The proposed method noticeably reduced the probability of detection for different detection methods via improving the embedding efficiency of both LSB and 2LSB methods, which is not restricted to a specific steganalysis attack. The extensions to LSB steganography methods have received great attention from steganographers, especially 2LSB, because it is easy to implement, has a higher capacity, is visually imperceptible, brings complex changes to the image pixel values and is harder to detect. The proposed method improves the detection accuracy of the current state of the art targeted 2LSB steganalysis methods via a novel approach pixel value grouping and statistical analysis of the image pixel values histogram. Moreover, a discrete classifier version of the proposed method is developed which gives a label (‘Stego’ or ‘Clean’) to the analysed image and avoids the overhead of setting a right threshold value. The last perspective of this research considers the evaluation process of the steganalysis tools and simplifying the digital forensics investigation process. Hence, a novel statistical method is proposed to effectively simplify the investigation process by showing the area of differences between the testing image set and the random set of images that is used as a baseline. It also indicates whether the difference is significant or not. All the above mentioned novel approaches included in this thesis are proven, in both theoretical and practical perspectives, to be better than the current state-of-the-art methods and add some value to the knowledge in the field of steganography, steganalysis and its applications.

Subjects/Keywords: 005.8; Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Khalind, O. S. (2015). New methods to improve the pixel domain steganography, steganalysis, and simplify the assessment of steganalysis tools. (Doctoral Dissertation). University of Portsmouth. Retrieved from https://researchportal.port.ac.uk/portal/en/theses/new-methods-to-improve-the-pixel-domain-steganography-steganalysis-and-simplify-the-assessment-of-steganalysis-tools(6431f03a-c2a1-477e-bbd4-e1db7c2ed6df).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690075

Chicago Manual of Style (16^th Edition):

Khalind, Omed Saleem. “New methods to improve the pixel domain steganography, steganalysis, and simplify the assessment of steganalysis tools.” 2015. Doctoral Dissertation, University of Portsmouth. Accessed February 22, 2020. https://researchportal.port.ac.uk/portal/en/theses/new-methods-to-improve-the-pixel-domain-steganography-steganalysis-and-simplify-the-assessment-of-steganalysis-tools(6431f03a-c2a1-477e-bbd4-e1db7c2ed6df).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690075.

MLA Handbook (7^th Edition):

Khalind, Omed Saleem. “New methods to improve the pixel domain steganography, steganalysis, and simplify the assessment of steganalysis tools.” 2015. Web. 22 Feb 2020.

Vancouver:

Khalind OS. New methods to improve the pixel domain steganography, steganalysis, and simplify the assessment of steganalysis tools. [Internet] [Doctoral dissertation]. University of Portsmouth; 2015. [cited 2020 Feb 22]. Available from: https://researchportal.port.ac.uk/portal/en/theses/new-methods-to-improve-the-pixel-domain-steganography-steganalysis-and-simplify-the-assessment-of-steganalysis-tools(6431f03a-c2a1-477e-bbd4-e1db7c2ed6df).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690075.

Council of Science Editors:

Khalind OS. New methods to improve the pixel domain steganography, steganalysis, and simplify the assessment of steganalysis tools. [Doctoral Dissertation]. University of Portsmouth; 2015. Available from: https://researchportal.port.ac.uk/portal/en/theses/new-methods-to-improve-the-pixel-domain-steganography-steganalysis-and-simplify-the-assessment-of-steganalysis-tools(6431f03a-c2a1-477e-bbd4-e1db7c2ed6df).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.690075

University of Portsmouth

30. Aljojo, Nahla Mohamed. Teacher assisting and subject adaptive material system : an Arabic adaptive learning environment.

Degree: PhD, 2012, University of Portsmouth

URL: https://researchportal.port.ac.uk/portal/en/theses/teacher-assisting-and-subject-adaptive-material-system(f5231b3c-7b5a-41e5-a26d-c286da1d2529).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.566849

► This thesis reports on research to develop the first adaptive learning system for the Arabic language. The research also develops the first robust translation of… (more)

Subjects/Keywords: 418.0071; Computing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Aljojo, N. M. (2012). Teacher assisting and subject adaptive material system : an Arabic adaptive learning environment. (Doctoral Dissertation). University of Portsmouth. Retrieved from https://researchportal.port.ac.uk/portal/en/theses/teacher-assisting-and-subject-adaptive-material-system(f5231b3c-7b5a-41e5-a26d-c286da1d2529).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.566849

Chicago Manual of Style (16^th Edition):

Aljojo, Nahla Mohamed. “Teacher assisting and subject adaptive material system : an Arabic adaptive learning environment.” 2012. Doctoral Dissertation, University of Portsmouth. Accessed February 22, 2020. https://researchportal.port.ac.uk/portal/en/theses/teacher-assisting-and-subject-adaptive-material-system(f5231b3c-7b5a-41e5-a26d-c286da1d2529).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.566849.

MLA Handbook (7^th Edition):

Aljojo, Nahla Mohamed. “Teacher assisting and subject adaptive material system : an Arabic adaptive learning environment.” 2012. Web. 22 Feb 2020.

Vancouver:

Aljojo NM. Teacher assisting and subject adaptive material system : an Arabic adaptive learning environment. [Internet] [Doctoral dissertation]. University of Portsmouth; 2012. [cited 2020 Feb 22]. Available from: https://researchportal.port.ac.uk/portal/en/theses/teacher-assisting-and-subject-adaptive-material-system(f5231b3c-7b5a-41e5-a26d-c286da1d2529).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.566849.

Council of Science Editors:

Aljojo NM. Teacher assisting and subject adaptive material system : an Arabic adaptive learning environment. [Doctoral Dissertation]. University of Portsmouth; 2012. Available from: https://researchportal.port.ac.uk/portal/en/theses/teacher-assisting-and-subject-adaptive-material-system(f5231b3c-7b5a-41e5-a26d-c286da1d2529).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.566849

		in
And / Or
		in
And / Or
		in
And / Or
		in

Open Access Theses and Dissertations