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1.
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
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APA (6th 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 (16th Edition):
Aul, Vani. “Harnessing Search Engine Optimization experience to enhance the visibility of websites.” 2018. Doctoral Dissertation, University of West London. Accessed February 26, 2021.
https://repository.uwl.ac.uk/id/eprint/6272/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.781909.
MLA Handbook (7th Edition):
Aul, Vani. “Harnessing Search Engine Optimization experience to enhance the visibility of websites.” 2018. Web. 26 Feb 2021.
Vancouver:
Aul V. Harnessing Search Engine Optimization experience to enhance the visibility of websites. [Internet] [Doctoral dissertation]. University of West London; 2018. [cited 2021 Feb 26].
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

Ryerson University
2.
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)
▼ 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 is available if it works and responds in a timely manner for varying workloads. Application service providers need to allocate specified number of working virtual machine copies for each server with at least a given minimum
computing power, to meet the response time requirement. Otherwise, we may end up with response time failures. This thesis formulates an optimization problem that determines the number and type of virtual machines needed for each server to minimize the cost and at the same time guarantees the availability SLA (Service-Level Agreement) for different workloads. The results demonstrate that a diverse approach is more cost-effective than running on a single type of virtual machine, and buying only the cheapest virtual machines for an application is not always economical.
Advisors/Committee Members: Das, Olivia (Thesis advisor).
Subjects/Keywords: Cloud computing; Cloud computing – Research
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th 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 (16th 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 26, 2021.
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 (7th Edition):
Sakhamuri, Praneeth. “Deployment of virtual machines for tiered applications in cloud systems with optimized resource allocation based on availability SLAS.” 2017. Web. 26 Feb 2021.
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 2021 Feb 26].
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

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
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Hackebeil, Gabriel A. “Efficient Oblivious Access to Trees.” 2016. Masters Thesis, Oregon State University. Accessed February 26, 2021.
http://hdl.handle.net/1957/59173.
MLA Handbook (7th Edition):
Hackebeil, Gabriel A. “Efficient Oblivious Access to Trees.” 2016. Web. 26 Feb 2021.
Vancouver:
Hackebeil GA. Efficient Oblivious Access to Trees. [Internet] [Masters thesis]. Oregon State University; 2016. [cited 2021 Feb 26].
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

Nelson Mandela Metropolitan University
4.
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
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Brander, William. “A model for adaptive multimodal mobile notification.” 2007. Masters Thesis, Nelson Mandela Metropolitan University. Accessed February 26, 2021.
http://hdl.handle.net/10948/699.
MLA Handbook (7th Edition):
Brander, William. “A model for adaptive multimodal mobile notification.” 2007. Web. 26 Feb 2021.
Vancouver:
Brander W. A model for adaptive multimodal mobile notification. [Internet] [Masters thesis]. Nelson Mandela Metropolitan University; 2007. [cited 2021 Feb 26].
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

Penn State University
5.
Jain, Aman.
SplitServe: Efficiently splitting complex workloads over IaaS and FaaS.
Degree: 2019, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/16826axj182
► Serverless computing products such as AWS Lambdas and other ``Cloud Functions'' (CFs) can offer much lower startup latencies than Virtual Machine (VM) instances with lower…
(more)
▼ Serverless
computing products such as AWS Lambdas and other ``Cloud Functions'' (CFs) can offer much lower startup latencies than Virtual Machine (VM) instances with lower minimum cost. This has made them an attractive candidate for autoscaling to handle unpredictable spikes in simple, mostly stateless workloads both from a performance and a cost point of view. For complex (stateful, I/O intensive) and latency-critical workloads, however, the efficacy of using CFs in combination with VMs has not been fully explored.
In this paper, we motivate a ``split-service'' application framework that can, for a given job (workload), {\it simultaneously} exploit both infrastructure-as-a-service (VM) and function-as-a-service (CF) products. Specifically, we design and implement a SplitServe-Spark embodiment of our proposal by modifying Apache Spark to use both Amazon VMs and Lambdas. Rather than letting performance degrade following the arrival of such jobs, we show that SplitServe-Spark is able to effectively use CFs to start servicing them immediately while new VMs are being launched, thus reducing the overall execution time. Further, when the new VMs do become available, SplitServe-Spark is able to move ongoing work from Lambdas to the new VMs, if that is deemed desirable from the cost or performance perspectives.
Our experimental evaluation of SplitServe-Spark using four different workloads (K-means clustering, PageRank, TPC-DS, and Pi) shows that SplitServe-Spark improves performance up to 55% for workloads with small to modest amount of shuffling and up to 31% in workloads with large amounts of shuffling, when compared to only VM based autoscaling. Furthermore, SplitServe-Spark along with novel segueing techniques can help us save up to 21% of cost by still giving almost 40% improvement in execution time.
Advisors/Committee Members: Bhuvan Urgaonkar, Thesis Advisor/Co-Advisor, George Kesidis, Committee Member.
Subjects/Keywords: Public Cloud Computing; Distributed Computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jain, A. (2019). SplitServe: Efficiently splitting complex workloads over IaaS and FaaS. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/16826axj182
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Jain, Aman. “SplitServe: Efficiently splitting complex workloads over IaaS and FaaS.” 2019. Thesis, Penn State University. Accessed February 26, 2021.
https://submit-etda.libraries.psu.edu/catalog/16826axj182.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Jain, Aman. “SplitServe: Efficiently splitting complex workloads over IaaS and FaaS.” 2019. Web. 26 Feb 2021.
Vancouver:
Jain A. SplitServe: Efficiently splitting complex workloads over IaaS and FaaS. [Internet] [Thesis]. Penn State University; 2019. [cited 2021 Feb 26].
Available from: https://submit-etda.libraries.psu.edu/catalog/16826axj182.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Jain A. SplitServe: Efficiently splitting complex workloads over IaaS and FaaS. [Thesis]. Penn State University; 2019. Available from: https://submit-etda.libraries.psu.edu/catalog/16826axj182
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th 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 26, 2021.
http://hdl.handle.net/2142/89280.
MLA Handbook (7th Edition):
Shifteh Far, Saeidreza. “A flexible fine-grained adaptive framework for parallel mobile hybrid cloud applications.” 2015. Web. 26 Feb 2021.
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 2021 Feb 26].
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.
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)
▼ 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 prices to their end users, which may choose the one that best meets their budgetary and technical needs. Despite this benefit of having multiple CSPs to select from, several issues may arise. For instance, how does an IT entrepreneur select a CSP to offload his/her service request?
How does the underlying Inter-Cloud system handle this service request? To address these questions, this thesis proposes a novel Optimal Cloud Broker design for Inter-Cloud Systems in the form of a Semi-Markov Decision Process (SMDP) based model. Under the long-run expected average cost criterion, the optimal policy is derived, which aim at maximizing the overall virtual machine utilization while giving the end users the best possible prices. The effectiveness of the proposed Broker design is validated by numerical results.
Advisors/Committee Members: Ryerson University (Degree grantor).
Subjects/Keywords: Cloud computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Peesary, Shraddha, R. “An optimal broker design for inter-cloud systems.” 2015. Thesis, Ryerson University. Accessed February 26, 2021.
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 (7th Edition):
Peesary, Shraddha, R. “An optimal broker design for inter-cloud systems.” 2015. Web. 26 Feb 2021.
Vancouver:
Peesary, Shraddha R. An optimal broker design for inter-cloud systems. [Internet] [Thesis]. Ryerson University; 2015. [cited 2021 Feb 26].
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
8.
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
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th 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 26, 2021.
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 (7th Edition):
Nair, Binoy B. “Empirical investigations on soft computing based
approaches to design of stock trading recommender
systems; -.” 2015. Web. 26 Feb 2021.
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 2021 Feb 26].
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 Oxford
9.
Endo, Suguru.
Hybrid quantum-classical algorithms and error mitigation.
Degree: PhD, 2019, University of Oxford
URL: http://ora.ox.ac.uk/objects/uuid:6733c0f6-1b19-4d12-a899-18946aa5df85
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791688
► These days, research groups such as Google, Microsoft, and Rigetti are working towards fabricating quantum devices which have hundreds to thousands of qubits. In recently…
(more)
▼ These days, research groups such as Google, Microsoft, and Rigetti are working towards fabricating quantum devices which have hundreds to thousands of qubits. In recently proposed quantum algorithms, i.e. hybrid quantum-classical algorithms, such quantum devices are used as subroutines for calculation of classically intractable tasks. However, the applicability of hybrid algorithms was quite limited, for example, the search of the ground state, and simulation of the dynamics of quan- tum systems. In addition, near-term quantum devices are expected to be quite noisy, impairing the precision of computation seriously and removing any potential advantages with quantum computers. Therefore, it is necessary to extend the applicability of hybrid algorithms and mitigate errors on quantum computers. In this thesis, we describe the generalisation of hybrid algorithms so that they can be applied to variety of problems, such as search of the spectrum of quantum systems, simulation of open quantum systems and even general mathematical tasks. The algorithm for finding spectra is useful for applications such as new drug discovery, design of batteries. Generally speaking, quantum systems of interest to physicists, chemists, and materials scientists inevitably interact with their environments, and quantum states are decohered. Therefore, to investigate quantum phenomena, new algorithms simulating open quantum systems are described in this thesis. Algorithms for general mathematical tasks such as matrix multiplication to a vector and solving linear equations, useful for a large number of problems, such as machine learning, are also presented. Furthermore, in order to make hybrid algorithms useful, we also invented a practical error mitigation method for suppressing physical errors, which may make hybrid algorithms useful. We showed that errors can be suppressed for a quantum system with over 50 qubits for the current achievable error rate, which is believed to be hard to simulate with classical computers. Also, we generalised the error mitigation technique to be applied to mitigate algorithmic errors, which may enhance the accuracy of Hamiltonian simulation.
Subjects/Keywords: Quantum computing
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Endo, S. (2019). Hybrid quantum-classical algorithms and error mitigation. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:6733c0f6-1b19-4d12-a899-18946aa5df85 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791688
Chicago Manual of Style (16th Edition):
Endo, Suguru. “Hybrid quantum-classical algorithms and error mitigation.” 2019. Doctoral Dissertation, University of Oxford. Accessed February 26, 2021.
http://ora.ox.ac.uk/objects/uuid:6733c0f6-1b19-4d12-a899-18946aa5df85 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791688.
MLA Handbook (7th Edition):
Endo, Suguru. “Hybrid quantum-classical algorithms and error mitigation.” 2019. Web. 26 Feb 2021.
Vancouver:
Endo S. Hybrid quantum-classical algorithms and error mitigation. [Internet] [Doctoral dissertation]. University of Oxford; 2019. [cited 2021 Feb 26].
Available from: http://ora.ox.ac.uk/objects/uuid:6733c0f6-1b19-4d12-a899-18946aa5df85 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791688.
Council of Science Editors:
Endo S. Hybrid quantum-classical algorithms and error mitigation. [Doctoral Dissertation]. University of Oxford; 2019. Available from: http://ora.ox.ac.uk/objects/uuid:6733c0f6-1b19-4d12-a899-18946aa5df85 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791688

Nelson Mandela Metropolitan University
10.
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
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Thomas, Godwin Dogara Ayenajeh. “A framework for secure mobile computing in healthcare.” 2007. Masters Thesis, Nelson Mandela Metropolitan University. Accessed February 26, 2021.
http://hdl.handle.net/10948/618.
MLA Handbook (7th Edition):
Thomas, Godwin Dogara Ayenajeh. “A framework for secure mobile computing in healthcare.” 2007. Web. 26 Feb 2021.
Vancouver:
Thomas GDA. A framework for secure mobile computing in healthcare. [Internet] [Masters thesis]. Nelson Mandela Metropolitan University; 2007. [cited 2021 Feb 26].
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
11.
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
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Kim, Yongtae. “Energy Efficient and Error Resilient Neuromorphic Computing in VLSI.” 2013. Thesis, Texas Digital Library. Accessed February 26, 2021.
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 (7th Edition):
Kim, Yongtae. “Energy Efficient and Error Resilient Neuromorphic Computing in VLSI.” 2013. Web. 26 Feb 2021.
Vancouver:
Kim Y. Energy Efficient and Error Resilient Neuromorphic Computing in VLSI. [Internet] [Thesis]. Texas Digital Library; 2013. [cited 2021 Feb 26].
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
12.
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
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Chung, Hyun-Chul. “Information Infrastructures in Distributed Environments: Algorithms for Mobile Networks and Resource Allocation.” 2013. Thesis, Texas Digital Library. Accessed February 26, 2021.
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 (7th Edition):
Chung, Hyun-Chul. “Information Infrastructures in Distributed Environments: Algorithms for Mobile Networks and Resource Allocation.” 2013. Web. 26 Feb 2021.
Vancouver:
Chung H. Information Infrastructures in Distributed Environments: Algorithms for Mobile Networks and Resource Allocation. [Internet] [Thesis]. Texas Digital Library; 2013. [cited 2021 Feb 26].
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

University of Saskatchewan
13.
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)
▼ 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 of
computing in daily life. Along with the rapid evolution of mobile devices, the applications on them are undergoing fast transformation. We can see many improvements in traditional applications (messaging, calling, etc.) like multimedia text messages, video calls, voice over IP and so forth. However, the Contacts application has not changed much while it has many potentials. In this thesis, we propose a new model which improves the Contacts application by introducing three novel capabilities: searching for contacts by their miscellaneous information, retaining knowledge of contacts via a tags system, and establishing a Personal Social Network which consists of the relationships between the contacts. By introducing these capabilities, the model helps its users to accomplish new tasks which are not currently handled by modern Contacts applications. Furthermore, the model is implemented and become a fully functional prototype on iOS and Android. The prototype is then evaluated in a user study and a system performance test. The studies yield positive results which indicate that the three new capabilities are valuable and should be included in today’s Contacts applications.
Advisors/Committee Members: Deters, Ralph, Deters, Ralph, Vassileva, Julita, Nguyen, Ha, Neufeld, Eric.
Subjects/Keywords: Mobile Computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Hoang, Nam. “Graphy: Exploring the potential of the Contacts application.” 2016. Thesis, University of Saskatchewan. Accessed February 26, 2021.
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 (7th Edition):
Hoang, Nam. “Graphy: Exploring the potential of the Contacts application.” 2016. Web. 26 Feb 2021.
Vancouver:
Hoang N. Graphy: Exploring the potential of the Contacts application. [Internet] [Thesis]. University of Saskatchewan; 2016. [cited 2021 Feb 26].
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
14.
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
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Mace, Jonathan Christopher. “A Universal Architecture for Cross-Cutting Tools in
Distributed Systems.” 2018. Thesis, Brown University. Accessed February 26, 2021.
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 (7th Edition):
Mace, Jonathan Christopher. “A Universal Architecture for Cross-Cutting Tools in
Distributed Systems.” 2018. Web. 26 Feb 2021.
Vancouver:
Mace JC. A Universal Architecture for Cross-Cutting Tools in
Distributed Systems. [Internet] [Thesis]. Brown University; 2018. [cited 2021 Feb 26].
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
15.
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
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Nepal, Kumud. “New Directions for Design-Space Exploration of Low-Power
Hardware Accelerators.” 2015. Doctoral Dissertation, Brown University. Accessed February 26, 2021.
https://repository.library.brown.edu/studio/item/bdr:419419/.
MLA Handbook (7th Edition):
Nepal, Kumud. “New Directions for Design-Space Exploration of Low-Power
Hardware Accelerators.” 2015. Web. 26 Feb 2021.
Vancouver:
Nepal K. New Directions for Design-Space Exploration of Low-Power
Hardware Accelerators. [Internet] [Doctoral dissertation]. Brown University; 2015. [cited 2021 Feb 26].
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
16.
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
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Nyakeya, Dennis Maige. “Adoption of cloud computing by the NGO Sector In Kenya
.” 2010. Thesis, University of Nairobi. Accessed February 26, 2021.
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 (7th Edition):
Nyakeya, Dennis Maige. “Adoption of cloud computing by the NGO Sector In Kenya
.” 2010. Web. 26 Feb 2021.
Vancouver:
Nyakeya DM. Adoption of cloud computing by the NGO Sector In Kenya
. [Internet] [Thesis]. University of Nairobi; 2010. [cited 2021 Feb 26].
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
17.
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
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th 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 26, 2021.
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 (7th 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. 26 Feb 2021.
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 2021 Feb 26].
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

University of Ottawa
18.
Hou, Zhijun.
Efficient Data Access in Cloudlet-based Mobile Cloud Computing
.
Degree: 2018, University of Ottawa
URL: http://hdl.handle.net/10393/37982
► The growth in mobile devices and applications has leveraged the emergence of mobile cloud computing, which allows the access to services at any place and…
(more)
▼ The growth in mobile devices and applications has leveraged the emergence of mobile cloud computing, which allows the access to services at any place and extends mobile computing. Usually, the current mobile network consists of a restricting factor in supporting such access because, from a global perspective, cloud servers are distant from most mobile users, which introduces signi cant latency and results in considerably delays on applications in mobile devices. On the other hand, Cloudlet are usually on the edge of Mobile Networks and can serve content to mobile users with high availability and high performance. This thesis reviews both the traditional mobile cloud computing and the Cloudlet architecture. A taxonomy on the Cloudlet architecture is introduced and three related technologies are discussed. Based on the user needs in this environment, personal model which is used to predict individual behaviour and group model which considers caching popular data for several users are proposed. Making use of these two models and the Cloudlet architecture, two data access schemes are designed based on model distribution
and data pre-distribution. We have conducted experiments and analysis for both the
models and data access schemes. For the models, model efficiency and comparisons among different technologies are analysed. Simulation results for the data access schemes show that the proposed schemes outperform the existing method from both battery consumption and performance aspects.
Subjects/Keywords: Cloud Computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hou, Z. (2018). Efficient Data Access in Cloudlet-based Mobile Cloud Computing
. (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/37982
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hou, Zhijun. “Efficient Data Access in Cloudlet-based Mobile Cloud Computing
.” 2018. Thesis, University of Ottawa. Accessed February 26, 2021.
http://hdl.handle.net/10393/37982.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hou, Zhijun. “Efficient Data Access in Cloudlet-based Mobile Cloud Computing
.” 2018. Web. 26 Feb 2021.
Vancouver:
Hou Z. Efficient Data Access in Cloudlet-based Mobile Cloud Computing
. [Internet] [Thesis]. University of Ottawa; 2018. [cited 2021 Feb 26].
Available from: http://hdl.handle.net/10393/37982.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hou Z. Efficient Data Access in Cloudlet-based Mobile Cloud Computing
. [Thesis]. University of Ottawa; 2018. Available from: http://hdl.handle.net/10393/37982
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
19.
Costa, Paulo Jorge Passos da.
As transformações nos sistemas de informação preconizadas pelo cloud computing.
Degree: 2011, RCAAP
URL: https://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipvc.pt:20.500.11960/1756
► Mestrado em Tecnologia e Gestão de Sistemas de Informação na Escola Superior de Tecnologia e Gestão do Instituto Politécnico de Viana do Castelo
Falar de…
(more)
▼ Mestrado em Tecnologia e Gestão de Sistemas de Informação na Escola Superior de Tecnologia e Gestão do Instituto Politécnico de Viana do Castelo
Falar de mudanças na área da informática é como falar de frio no Pólo Norte, ou
seja, não estamos perante nada de novo. Existem contudo alterações que
representam uma descontinuidade com o passado, e esse tipo de alterações são já
bem menos frequentes. O Cloud Computing insere-se nesta lista bastante mais
restrita. Estamos a falar de um novo paradigma da computação que começou a dar
os primeiros passos entre o final do século passado e o início deste, aquando da
disponibilização dos primeiros serviços online (nomeadamente o Gmail, Hotmail,
Salesforce CRM, entre outros) e que, neste momento, impulsionado pela actual
conjuntura económica e por fenómenos associados à deslocalização da força de
trabalho, despertou o interesse do meio empresarial. A este nível, o cloud
computing representa uma alteração radical relativamente à estruturação das TI e
à forma como estas passam a suportar os sistemas de informação das
organizações, e também à forma como as organizações pensam os seus
investimentos em TI. É importante compreender que essas alterações não se
confinam apenas à esfera tecnológica. Na verdade, elas são bem mais abrangentes
na medida em que podem provocar alterações ao próprio modelo de negócio das
organizações. Este é aliás um dos aspectos a reter, devemos olhar para o Cloud
Computing mais como um modelo de negócio que faz uso de um conjunto de
tecnologias existentes, do que propriamente uma nova tecnologia.
Esta dissertação tem como objectivo realizar uma análise detalhada acerca do
Cloud Computing apresentando o conceito, as camadas, os modelos, as plataformas
existentes e respectivos fornecedores. Para além desses aspectos, pretende-se
analisar a situação do Cloud Computing em Portugal, avaliando o seu grau de
maturidade.
Como componente prática desta dissertação, será realizada a migração de uma
aplicação Web para o formato cloud, utilizando para o efeito a plataforma da
Microsoft, Windows Azure. Essa migração será realizada com o intuito de
identificar eventuais dificuldades ocorridas nesse processo. Adicionalmente será
realizada uma análise de performance face a um modelo de alojamento tradicional.
Speaking of change in computing is like talking of cold at the North Pole, that is, we
are not faced with anything new. However, there are changes that represent a
discontinuity with the past, and such changes are far less frequent. Cloud
Computing is part of this much more restricted list. We are talking about a new
computing paradigm that began to take its first steps towards the end of the last
century and the beginning of this one, when the first services became available
online (namely Gmail, Hotmail, Salesforce CRM, among others) and which at the
moment, driven by current economic phase with the phenomena associated with
the relocation of the workforce, awakened the interest of the business world. At
this level, Cloud Computing represents a radical change on…
Advisors/Committee Members: Cruz, António Miguel.
Subjects/Keywords: Cloud computing
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Costa, P. J. P. d. (2011). As transformações nos sistemas de informação preconizadas pelo cloud computing. (Thesis). RCAAP. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipvc.pt:20.500.11960/1756
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Costa, Paulo Jorge Passos da. “As transformações nos sistemas de informação preconizadas pelo cloud computing.” 2011. Thesis, RCAAP. Accessed February 26, 2021.
https://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipvc.pt:20.500.11960/1756.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Costa, Paulo Jorge Passos da. “As transformações nos sistemas de informação preconizadas pelo cloud computing.” 2011. Web. 26 Feb 2021.
Vancouver:
Costa PJPd. As transformações nos sistemas de informação preconizadas pelo cloud computing. [Internet] [Thesis]. RCAAP; 2011. [cited 2021 Feb 26].
Available from: https://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipvc.pt:20.500.11960/1756.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Costa PJPd. As transformações nos sistemas de informação preconizadas pelo cloud computing. [Thesis]. RCAAP; 2011. Available from: https://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipvc.pt:20.500.11960/1756
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

California State Polytechnic University – Pomona
20.
Rodriguez, Juan.
Encryption and Decryption Systems Using Post-Quantum Technology.
Degree: MS, Department of Computer Science, 2020, California State Polytechnic University – Pomona
URL: http://hdl.handle.net/10211.3/216832
► For decades, the RSA algorithm has been the leading algorithm for encryption and decryption security systems. The fact of using RSA infrastructure is that everything…
(more)
▼ For decades, the RSA algorithm has been the leading algorithm for encryption and decryption security systems. The fact of using RSA infrastructure is that everything is performed using a server system, which are classical computers meaning that there are some limitations in processing power threshold. There are many leading companies, such as governments, financial, and many other industries that currently uses the RSA algorithm to encrypt their data whenever it is being transferred between the computer and the server. Today, there exists a newer technology that is more powerful than the classical computer that we are currently using today, and that innovative technology is quantum
computing. This technology can perform a brute-force attack, encryption, and decryption process, and many more at a very fast and impressive speed that no other technologies are able to perform. Due to its outstanding speed, this will open door to vulnerabilities, which means that if hackers get their hands on the quantum technology and have knowledge of writing PyQuil programs, then they will be able to successfully perform a brute-force attack on RSA system meaning that RSA algorithm will no longer be the safest security standard for industries to use. For this research study, experiments will be performed on several encryption and decryption post-quantum algorithms to compare and determine which of these algorithms are the most secure for the industry to utilize them for their encryption system. The algorithms that will be used in this experiment are the Diffie-Hellman Key Exchange, Merkle Signature Scheme, Ring-LWE Signature, and Rainbow. In this experiment, the advantages and disadvantages of using these four algorithms will be determined alongside determining the best post-quantum algorithm for encryption and decryption system.
Advisors/Committee Members: Young, Gilbert (advisor), Sun, Yu (committee member).
Subjects/Keywords: quantum computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Rodriguez, J. (2020). Encryption and Decryption Systems Using Post-Quantum Technology. (Masters Thesis). California State Polytechnic University – Pomona. Retrieved from http://hdl.handle.net/10211.3/216832
Chicago Manual of Style (16th Edition):
Rodriguez, Juan. “Encryption and Decryption Systems Using Post-Quantum Technology.” 2020. Masters Thesis, California State Polytechnic University – Pomona. Accessed February 26, 2021.
http://hdl.handle.net/10211.3/216832.
MLA Handbook (7th Edition):
Rodriguez, Juan. “Encryption and Decryption Systems Using Post-Quantum Technology.” 2020. Web. 26 Feb 2021.
Vancouver:
Rodriguez J. Encryption and Decryption Systems Using Post-Quantum Technology. [Internet] [Masters thesis]. California State Polytechnic University – Pomona; 2020. [cited 2021 Feb 26].
Available from: http://hdl.handle.net/10211.3/216832.
Council of Science Editors:
Rodriguez J. Encryption and Decryption Systems Using Post-Quantum Technology. [Masters Thesis]. California State Polytechnic University – Pomona; 2020. Available from: http://hdl.handle.net/10211.3/216832

University of Manitoba
21.
Bajpai, Deepak.
Stratus: Building and Evaluating a Private Cloud for a Real-World Financial Application.
Degree: Computer Science, 2016, University of Manitoba
URL: http://hdl.handle.net/1993/31581
► Cloud computing technology has been emerging and spreading at a great pace due to its service oriented architecture, elasticity, cost-effectiveness, etc. Many organizations are using…
(more)
▼ Cloud
computing technology has been emerging and spreading at a great pace due to its service oriented architecture, elasticity, cost-effectiveness, etc. Many organizations are using Infrastructure-as-a-Service (IaaS) public Clouds for data migration away from traditional IT Infrastructure but there are a few fields such as finance, hospitals, military and others that are reluctant to use public Clouds due to perceived security vulnerability. Enterprises in such fields feel more vulnerable to security breaches and feel secure using in-house IT infrastructure. The introduction of private Clouds is a solution for these businesses.
Private Clouds have been substituted for the traditional IT Infrastructure due to its flexible ``pay-as-you-go" model within an organization by departments and enhanced privacy relative to public Clouds in the form of administration control and supervision.
Goal of my thesis is to build and evaluate a private Cloud that can provide virtual machines (VMs) as a service and applications as a service. To achieve this goal, in my thesis, I have built and evaluated a service oriented IaaS model of private Cloud. I have used off-the-shelf servers and open-source software for this purpose. I have proposed a new replication strategy using an Openstack component called Cinder. My experiments show that efficient VM failure recovery on the basis of ``preparation delay" time can be achieved using my strategy. I have studied a real-world application of option pricing from the finance market and have used that application for the purpose of testing my private Cloud for compute workload and accuracy of the pricing results. Later, I have compared performance between Cloud VMs and standalone servers. The performance of Cloud VM is found to be better to standalone servers as long as the number of virtual CPUs (vCPUs) are limited to single node.
Stratus clouds are groups of small clouds that collectively give a spectacular sight in the sky. The private Cloud I have built uses multiple small modules to achieve the stated goal and hence I named my private Cloud ``Stratus". This Stratus private Cloud is now ready for deploying applications, and for providing VMs on-demand.
Advisors/Committee Members: Thulasiram, Ruppa K. (Computer Science) (supervisor), Graham, Peter (Computer Science) Jeffrey, Ian (Electrical and Computer Engineering) (examiningcommittee).
Subjects/Keywords: Cloud Computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bajpai, D. (2016). Stratus: Building and Evaluating a Private Cloud for a Real-World Financial Application. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/31581
Chicago Manual of Style (16th Edition):
Bajpai, Deepak. “Stratus: Building and Evaluating a Private Cloud for a Real-World Financial Application.” 2016. Masters Thesis, University of Manitoba. Accessed February 26, 2021.
http://hdl.handle.net/1993/31581.
MLA Handbook (7th Edition):
Bajpai, Deepak. “Stratus: Building and Evaluating a Private Cloud for a Real-World Financial Application.” 2016. Web. 26 Feb 2021.
Vancouver:
Bajpai D. Stratus: Building and Evaluating a Private Cloud for a Real-World Financial Application. [Internet] [Masters thesis]. University of Manitoba; 2016. [cited 2021 Feb 26].
Available from: http://hdl.handle.net/1993/31581.
Council of Science Editors:
Bajpai D. Stratus: Building and Evaluating a Private Cloud for a Real-World Financial Application. [Masters Thesis]. University of Manitoba; 2016. Available from: http://hdl.handle.net/1993/31581

University of Ottawa
22.
Firozbakht, Farzad.
Cloud Computing Service Discovery Framework for IaaS and PaaS Models
.
Degree: 2016, University of Ottawa
URL: http://hdl.handle.net/10393/35595
► Cloud service discovery is a new challenge which requires a dedicated framework in order to approach it. Over the past few years, several methods and…
(more)
▼ Cloud service discovery is a new challenge which requires a dedicated framework in order to approach it. Over the past few years, several methods and frameworks have been developed for cloud service discovery but they are mostly designed for all cloud computing models in general which are not optimal. The three cloud computing models are Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service (SaaS), each computing model has its own set of resources. Having one single discovery framework for all three is not very efficient and the implementation of such a framework is complex with lots of overhead.
The existing frameworks for cloud service discovery are mostly semantic-based and there are a few syntax-based frameworks that are using the filter by Attribute method as their solution. This research proposes a cloud service discovery framework focusing on IaaS and PaaS cloud computing models. Our framework is using a syntax-based query engine at its core and uses Extensible Markup Language (XML) for storing cloud service information. We eventually test the framework from the user point of view with IaaS and PaaS cloud services from real cloud service providers.
Such a framework could be a good solution for IaaS and PaaS since it is accurate enough for service discovery and easy to update.
Subjects/Keywords: Cloud;
Computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Firozbakht, F. (2016). Cloud Computing Service Discovery Framework for IaaS and PaaS Models
. (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/35595
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Firozbakht, Farzad. “Cloud Computing Service Discovery Framework for IaaS and PaaS Models
.” 2016. Thesis, University of Ottawa. Accessed February 26, 2021.
http://hdl.handle.net/10393/35595.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Firozbakht, Farzad. “Cloud Computing Service Discovery Framework for IaaS and PaaS Models
.” 2016. Web. 26 Feb 2021.
Vancouver:
Firozbakht F. Cloud Computing Service Discovery Framework for IaaS and PaaS Models
. [Internet] [Thesis]. University of Ottawa; 2016. [cited 2021 Feb 26].
Available from: http://hdl.handle.net/10393/35595.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Firozbakht F. Cloud Computing Service Discovery Framework for IaaS and PaaS Models
. [Thesis]. University of Ottawa; 2016. Available from: http://hdl.handle.net/10393/35595
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
23.
Memarović, Nemanja.
Interacting places: networked public displays that stimulate
community interaction.
Degree: 2014, Università della Svizzera italiana
URL: http://doc.rero.ch/record/234388
► Networked public displays are envisioned as a new communications medium for the 21st century, potentially having the same impact on society as radio, TV, or…
(more)
▼ Networked public displays are envisioned as a new
communications medium for the 21st century, potentially having the
same impact on society as radio, TV, or Internet. This thesis
examines the impact of networked public displays medium on society
by focusing on understanding its use for stimulating community
interaction – interaction between community members residing within
and across public spaces. In other words, the thesis focuses on
"Interacting Places" – networked public displays that stimulate
community interaction in public spaces. By building on top of
diverse literature – from Marshall McLuhan’s media theory and
literature on interactions and processes in public spaces – I have
first conceptualized the design space. Next I have designed,
developed, deployed, and evaluated three networked public display
applications "in the wild" and have analyzed their effects, uptake,
and use. The outcome of the thesis are lessons learned in the
process and conceptual tools for design and analysis of networked
public displays that stimulate community interaction within
place-based communities.
Advisors/Committee Members: Langheinrich, Marc (Dir.).
Subjects/Keywords: Urban computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Memarović, N. (2014). Interacting places: networked public displays that stimulate
community interaction. (Thesis). Università della Svizzera italiana. Retrieved from http://doc.rero.ch/record/234388
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Memarović, Nemanja. “Interacting places: networked public displays that stimulate
community interaction.” 2014. Thesis, Università della Svizzera italiana. Accessed February 26, 2021.
http://doc.rero.ch/record/234388.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Memarović, Nemanja. “Interacting places: networked public displays that stimulate
community interaction.” 2014. Web. 26 Feb 2021.
Vancouver:
Memarović N. Interacting places: networked public displays that stimulate
community interaction. [Internet] [Thesis]. Università della Svizzera italiana; 2014. [cited 2021 Feb 26].
Available from: http://doc.rero.ch/record/234388.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Memarović N. Interacting places: networked public displays that stimulate
community interaction. [Thesis]. Università della Svizzera italiana; 2014. Available from: http://doc.rero.ch/record/234388
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
24.
Babazadeh, Masiar.
Liquid stream processing on the web: a JavaScript
framework.
Degree: 2017, Università della Svizzera italiana
URL: http://doc.rero.ch/record/306887
► The Web is rapidly becoming a mature platform to host distributed applications. Pervasive computing application running on the Web are now common in the era…
(more)
▼ The Web is rapidly becoming a mature platform to host
distributed applications. Pervasive
computing application running
on the Web are now common in the era of the Web of Things, which
has made it increasingly simple to integrate sensors and
microcontrollers in our everyday life. Such devices are of great
in- terest to Makers with basic Web development skills. With them,
Makers are able to build small smart stream processing applications
with sensors and actuators without spending a fortune and without
knowing much about the technologies they use. Thanks to ongoing Web
technology trends enabling real-time peer-to- peer communication
between Web-enabled devices, Web browsers and server- side
JavaScript runtimes, developers are able to implement pervasive Web
ap- plications using a single programming language. These can take
advantage of direct and continuous communication channels going
beyond what was possible in the early stages of the Web to push
data in real-time. Despite these recent advances, building stream
processing applications on the Web of Things remains a challenging
task. On the one hand, Web-enabled devices of different nature
still have to communicate with different protocols. On the other
hand, dealing with a dynamic, heterogeneous, and volatile
environment like the Web requires developers to face issues like
disconnections, unpredictable workload fluctuations, and device
overload. To help developers deal with such issues, in this
dissertation we present the Web Liquid Streams (WLS) framework, a
novel streaming framework for JavaScript. Developers implement
streaming operators written in JavaScript and may interactively and
dynamically define a streaming topology. The framework takes care
of deploying the user-defined operators on the available devices
and connecting them using the appropriate data channel, removing
the burden of dealing with different deployment environments from
the developers. Changes in the semantic of the application and in
its execution environment may be ap- plied at runtime without
stopping the stream flow. Like a liquid adapts its shape to the one
of its container, the Web Liquid Streams framework makes streaming
topologies flow across multiple heterogeneous devices, enabling
dynamic operator migration without disrupting the data flow. By
constantly monitoring the execution of the topology with a
hierarchical controller infrastructure, WLS takes care of
parallelising the operator execution across multiple devices in
case of bottlenecks and of recovering the execution of the
streaming topology in case one or more devices disconnect, by
restarting lost operators on other available devices.
Advisors/Committee Members: Cesare (Dir.).
Subjects/Keywords: Autonomous computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Babazadeh, M. (2017). Liquid stream processing on the web: a JavaScript
framework. (Thesis). Università della Svizzera italiana. Retrieved from http://doc.rero.ch/record/306887
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Babazadeh, Masiar. “Liquid stream processing on the web: a JavaScript
framework.” 2017. Thesis, Università della Svizzera italiana. Accessed February 26, 2021.
http://doc.rero.ch/record/306887.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Babazadeh, Masiar. “Liquid stream processing on the web: a JavaScript
framework.” 2017. Web. 26 Feb 2021.
Vancouver:
Babazadeh M. Liquid stream processing on the web: a JavaScript
framework. [Internet] [Thesis]. Università della Svizzera italiana; 2017. [cited 2021 Feb 26].
Available from: http://doc.rero.ch/record/306887.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Babazadeh M. Liquid stream processing on the web: a JavaScript
framework. [Thesis]. Università della Svizzera italiana; 2017. Available from: http://doc.rero.ch/record/306887
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Université de Neuchâtel
25.
Schilling, Oliver S.
Advances in characterizing surface water-groundwater
interactions : combining unconventional data with complex,
fully-integrated models.
Degree: 2017, Université de Neuchâtel
URL: http://doc.rero.ch/record/324398
► Caractériser et simuler les interactions entre les eaux de surface et souterraines s’avère être un enjeu de plus en plus important afin de garantir une…
(more)
▼ Caractériser et simuler les interactions entre les
eaux de surface et souterraines s’avère être un enjeu de plus en
plus important afin de garantir une eau de qualité pour des puits
de pompage situés à proximité d’une rivière. Grâce à la dernière
génération de modèles numériques physiques intégrant les
écoulements de surface et souterrains, il est maintenant possible
de simuler tous les processus physiques gouvernant ces
interactions. Cependant, les résultats de ces modèles sont souvent
peu satisfaisants. Plusieurs études suggèrent que l’utilisation des
charges hydrauliques et des débits de la rivière n’est pas
suffisante pour décrire et contraindre ces processus complexes. Une
revue bibliographique de ces différentes études est présentée dans
le chapitre 2. Afin de parvenir à un meilleur calage de ces
modèles, l’utilisation d’autres types d’observations que l’on peut
qualifier de non-conventionnelles doit être envisagée. Ces
observations non-conventionnelles peuvent être par exemple les flux
caractérisant les interactions ou la concentration de solutés. Le
but principal de cette thèse de doctorat est de montrer que
l’utilisation de ces observations non conventionnelles permet non
seulement d’améliorer significativement le calage de ces modèles,
mais également de réduire grandement les incertitudes de leurs
projections. Le chapitre 4 présente le développement
d’une nouvelle méthode utilisant l’accroissement de cernes des
arbres afin de quantifier l’historique de transpiration des arbres
riverains. Les observations non-conventionnelles obtenues grâce à
cette méthode ont ensuite été utilisées pour caler un modèle
HydroGeoSphere couplant les écoulements souterrains et de surface
ainsi que la transpiration des végétaux. Une analyse d’incertitude
a permis de quantifier la réduction de l’incertitude induite par
l’utilisation de ces observations non-conventionnelles.
Le chapitre 5 présente l’utilisation de traceurs naturels afin de
caler un modèle d’écoulements souterrains et de surface. Cette
étude fut réalisée dans le cadre d’un essai de traçage réalisé dans
un champ de captage situé en Suisse. Après avoir évalué le temps de
résidence de l’eau en utilisant les concentrations en argon-37, une
analyse du mélange entre les eaux récemment infiltrées et les eaux
plus vieilles a été réalisée en analysant les températures
d’infiltration des gaz rares. Ces deux informations qui permettent
de décrire les interactions entre la rivière et l’aquifère furent
utilisées en plus des observations conventionnelles pour caler et
contraindre le modèle de ce champ de captage. Les résultats obtenus
montrent clairement une amélioration des capacités prédictives du
modèle ainsi qu’une diminution de ses incertitudes. Le
chapitre 3 décrit une nouvelle méthode utilisant la méthode de
Monte-Carlos afin d’identifier des zones non saturées entre le lit
d’une rivière et d’un aquifère tous deux aux propriétés
hétérogènes. Finalement, le chapitre6 présente une nouvelle
approche de simulation utilisant HydroGeoSphere, le filtre de
Kalman…
Advisors/Committee Members: Philip (Dir.), Daniel (Codir.).
Subjects/Keywords: cloud computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Schilling, O. S. (2017). Advances in characterizing surface water-groundwater
interactions : combining unconventional data with complex,
fully-integrated models. (Thesis). Université de Neuchâtel. Retrieved from http://doc.rero.ch/record/324398
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Schilling, Oliver S. “Advances in characterizing surface water-groundwater
interactions : combining unconventional data with complex,
fully-integrated models.” 2017. Thesis, Université de Neuchâtel. Accessed February 26, 2021.
http://doc.rero.ch/record/324398.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Schilling, Oliver S. “Advances in characterizing surface water-groundwater
interactions : combining unconventional data with complex,
fully-integrated models.” 2017. Web. 26 Feb 2021.
Vancouver:
Schilling OS. Advances in characterizing surface water-groundwater
interactions : combining unconventional data with complex,
fully-integrated models. [Internet] [Thesis]. Université de Neuchâtel; 2017. [cited 2021 Feb 26].
Available from: http://doc.rero.ch/record/324398.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Schilling OS. Advances in characterizing surface water-groundwater
interactions : combining unconventional data with complex,
fully-integrated models. [Thesis]. Université de Neuchâtel; 2017. Available from: http://doc.rero.ch/record/324398
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
26.
Zulian, Patrick.
Geometry–aware finite element framework for multi–physics
simulations: an algorithmic and software-centric
perspective.
Degree: 2017, Università della Svizzera italiana
URL: http://doc.rero.ch/record/304964
► In finite element simulations, the handling of geometrical objects and their discrete representation is a critical aspect in both serial and parallel scientific software environments.…
(more)
▼ In finite element simulations, the handling of
geometrical objects and their discrete representation is a critical
aspect in both serial and parallel scientific software
environments. The development of codes targeting such envinronments
is
subject to great development effort and man-hours invested. In
this thesis we approach these issues from three fronts. First,
stable and efficient techniques for the transfer of discrete fields
between non matching volume or surface meshes are an essential
ingredient for the discretization and numerical solution of coupled
multi-physics and multi-scale problems. In particular
L2-projections allows for the transfer of discrete fields between
unstructured meshes, both in the volume and on the surface. We
present an algorithm for parallelizing the assembly of the
L2-transfer operator for unstructured meshes which are arbitrarily
distributed among different processes. The algorithm requires no a
priori information on the geometrical relationship between the
different meshes. Second, the geometric representation is often a
limiting factor which imposes a trade-off between how accurately
the shape is described, and what methods can be employed for
solving a system of differential equations. Parametric
finite-elements and bijective mappings between polygons or
polyhedra allow us to flexibly construct finite element
discretizations with arbitrary resolutions without sacrificing the
accuracy of the shape description. Such flexibility allows
employing state-of-the-art techniques, such as geometric multigrid
methods, on meshes with almost any shape.t, the way numerical
techniques are represented in software libraries and approached
from a development perspective, affect both usability and
maintainability of such libraries. Completely separating the intent
of high-level routines from the actual implementation and
technologies allows for portable and maintainable performance. We
provide an overview on current trends in the development of
scientific software and showcase our open-source library
utopia.
Advisors/Committee Members: Rolf (Dir.).
Subjects/Keywords: Parallel computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zulian, P. (2017). Geometry–aware finite element framework for multi–physics
simulations: an algorithmic and software-centric
perspective. (Thesis). Università della Svizzera italiana. Retrieved from http://doc.rero.ch/record/304964
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Zulian, Patrick. “Geometry–aware finite element framework for multi–physics
simulations: an algorithmic and software-centric
perspective.” 2017. Thesis, Università della Svizzera italiana. Accessed February 26, 2021.
http://doc.rero.ch/record/304964.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Zulian, Patrick. “Geometry–aware finite element framework for multi–physics
simulations: an algorithmic and software-centric
perspective.” 2017. Web. 26 Feb 2021.
Vancouver:
Zulian P. Geometry–aware finite element framework for multi–physics
simulations: an algorithmic and software-centric
perspective. [Internet] [Thesis]. Università della Svizzera italiana; 2017. [cited 2021 Feb 26].
Available from: http://doc.rero.ch/record/304964.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Zulian P. Geometry–aware finite element framework for multi–physics
simulations: an algorithmic and software-centric
perspective. [Thesis]. Università della Svizzera italiana; 2017. Available from: http://doc.rero.ch/record/304964
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Debrecen
27.
Csapó, Zoltán.
Cloud computing (számítási felhő) szolgáltatások az agrárvállalkozások és gazdálkodók számára
.
Degree: DE – ATC – Gazdálkodástudományi és Vidékfejlesztési Kar, 2012, University of Debrecen
URL: http://hdl.handle.net/2437/147148
A gazdálkodó internetes felhőben intézheti el a napi szükséges teendőket a vállalkozásával kapcsolatban. Táblázatkezelő, szöveszerkesztő, kérdőív és pőrezentációs műveletek alkalmazása ingyenesen a Google szolgáltatásának köszönhetően. A dolgozat kitér a Fujitsu és az e-Link cloud computing szolgáltatásaira is.
Advisors/Committee Members: Herdon, Miklós (advisor).
Subjects/Keywords: cloud;
computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Csapó, Z. (2012). Cloud computing (számítási felhő) szolgáltatások az agrárvállalkozások és gazdálkodók számára
. (Thesis). University of Debrecen. Retrieved from http://hdl.handle.net/2437/147148
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Csapó, Zoltán. “Cloud computing (számítási felhő) szolgáltatások az agrárvállalkozások és gazdálkodók számára
.” 2012. Thesis, University of Debrecen. Accessed February 26, 2021.
http://hdl.handle.net/2437/147148.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Csapó, Zoltán. “Cloud computing (számítási felhő) szolgáltatások az agrárvállalkozások és gazdálkodók számára
.” 2012. Web. 26 Feb 2021.
Vancouver:
Csapó Z. Cloud computing (számítási felhő) szolgáltatások az agrárvállalkozások és gazdálkodók számára
. [Internet] [Thesis]. University of Debrecen; 2012. [cited 2021 Feb 26].
Available from: http://hdl.handle.net/2437/147148.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Csapó Z. Cloud computing (számítási felhő) szolgáltatások az agrárvállalkozások és gazdálkodók számára
. [Thesis]. University of Debrecen; 2012. Available from: http://hdl.handle.net/2437/147148
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

North-West University
28.
Moemi, Thusoyaone Joseph.
Energy efficiency models and optimization algoruthm to enhance on-demand resource delivery in a cloud computing environment / Thusoyaone Joseph Moemi
.
Degree: 2013, North-West University
URL: http://hdl.handle.net/10394/15831
► Online hosed services are what is referred to as Cloud Computing. Access to these services is via the internet. h shifts the traditional IT resource…
(more)
▼ Online hosed services are what is referred to as Cloud Computing. Access to these services is via
the internet. h shifts the traditional IT resource ownership model to renting. Thus, high cost of
infrastructure cannot limit the less privileged from experiencing the benefits that this new
paradigm brings. Therefore, c loud computing provides flexible services to cloud user in the form
o f software, platform and infrastructure as services. The goal behind cloud computing is to provide
computing resources on-demand to cloud users efficiently, through making data centers as friendly
to the environment as possible, by reducing data center energy consumption and carbon emissions.
With the massive growth of high performance computational services and applications, huge
investment is required to build large scale data centers with thousands o f centers and computing
model. Large scale data centers consume enormous amount s of electrical energy. The
computational intensity involved in data center is likely to dramatically increase the difference
between the amount of energy required for peak periods and of T-peak periods in a cloud
computing data center. In addition to the overwhelming operational cost, the overheating caused
by high power consumption will affect the reliability o f machines and hence reduce their lifetime.
There fore, in order to make the best u e of precious electricity resources, it is important to know
how much energy will be required under a certain circumstance in a data center. Consequently,
this dissertation addresses the challenge by developing and energy-efficient model and a
defragmentation algorithm. We further develop an efficient energy usage metric to calculate the
power consumption along with a Load Balancing Virtual Machine Aware Model for improving
delivery of no-demand resource in a cloud-computing environment. The load balancing model
supports the reduction of energy consumption and helps to improve quality of service. An
experimental design was carried out using cloud analyst as a simulation tool. The results obtained
show that the LBVMA model and throttled load balancing algorithm consumed less energy. Also,
the quality or service in terms of response time is much better for data centers that have more
physical machines. but memory configurations at higher frequencies consume more energy.
Additionally, while using the LBVMA model in conjunction with the throttled load balancing
algorithm, less energy is consumed. meaning less carbon is produced by the data center.
Subjects/Keywords: Cloud computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Moemi, T. J. (2013). Energy efficiency models and optimization algoruthm to enhance on-demand resource delivery in a cloud computing environment / Thusoyaone Joseph Moemi
. (Thesis). North-West University. Retrieved from http://hdl.handle.net/10394/15831
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Moemi, Thusoyaone Joseph. “Energy efficiency models and optimization algoruthm to enhance on-demand resource delivery in a cloud computing environment / Thusoyaone Joseph Moemi
.” 2013. Thesis, North-West University. Accessed February 26, 2021.
http://hdl.handle.net/10394/15831.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Moemi, Thusoyaone Joseph. “Energy efficiency models and optimization algoruthm to enhance on-demand resource delivery in a cloud computing environment / Thusoyaone Joseph Moemi
.” 2013. Web. 26 Feb 2021.
Vancouver:
Moemi TJ. Energy efficiency models and optimization algoruthm to enhance on-demand resource delivery in a cloud computing environment / Thusoyaone Joseph Moemi
. [Internet] [Thesis]. North-West University; 2013. [cited 2021 Feb 26].
Available from: http://hdl.handle.net/10394/15831.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Moemi TJ. Energy efficiency models and optimization algoruthm to enhance on-demand resource delivery in a cloud computing environment / Thusoyaone Joseph Moemi
. [Thesis]. North-West University; 2013. Available from: http://hdl.handle.net/10394/15831
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
29.
Cocea, Mihaela.
User modelling and adaptation in exploratory learning.
Degree: PhD, 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
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th 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 (16th Edition):
Cocea, Mihaela. “User modelling and adaptation in exploratory learning.” 2011. Doctoral Dissertation, Birkbeck (University of London). Accessed February 26, 2021.
http://eprints.port.ac.uk/12174/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574869.
MLA Handbook (7th Edition):
Cocea, Mihaela. “User modelling and adaptation in exploratory learning.” 2011. Web. 26 Feb 2021.
Vancouver:
Cocea M. User modelling and adaptation in exploratory learning. [Internet] [Doctoral dissertation]. Birkbeck (University of London); 2011. [cited 2021 Feb 26].
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 Portsmouth
30.
Badriyah, Tessy.
Developing risk of mortality and early warning score models using routinely collected data.
Degree: PhD, 2013, University of Portsmouth
URL: https://researchportal.port.ac.uk/portal/en/theses/developing-risk-of-mortality-and-early-warning-score-models-using-routinely-collected-data(88353bb6-9b5d-4bca-ba60-78e33bd8e085).html
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.588644
► Aim. The aim of this study was to contribute to the building of effective and efficient methods to predict adverse clinical outcome. It has been…
(more)
▼ Aim. The aim of this study was to contribute to the building of effective and efficient methods to predict adverse clinical outcome. It has been done by developing risk of mortality and early warning score models using routinely collected data that are available from hospital computer systems. Methods. To predict risk of mortality, firstly we used logistic regression using (Biochemistry and Haematology Outcome Model - BHOM dataset) to generate a model, and the performance of each model was then compared using discrimination (AUROC or c-index) and calibration (the Hosmer- Lemeshow test). Secondly, we focused on decision trees (DT) to be compared with logistic regression (LR). In addition, we used cross validation to compare LR with other various machine learning methods. We developed early warning score algorithmically using decision trees (DTEWS) using vital sign dataset and compared the performance of DTEWS with other EWSs based on clinical expertise using c index, early warning score efficiency curve and distribution score. We also compared DTEWS with another EWS based on statistics and applied DTEWS to BHOM dataset. Results. In BHOM dataset, there were 9497 adult hospital discharges, and it was divided into four subsets. A model was built using one training set and then applied to three other testing data sets. The model in logistic regression satisfied both discrimination and calibration value when the c-index in the range 0.700-0.800 is reasonable discrimination and the p-value > 0.05 indicates there is no evidence of significant lack of fit. We also found that decision trees gave a satisfactory result followed by some other machine learning methods.Using a large vital signs dataset (n = 198,755 observation sets) from acute medical admissions, DTEWS can provide a discrimination (c-index) as good as other EWSs, has a better c-index, and also is better in other measurements including EWS efficiency curve, and distribution of score. We found DTEWS can also be applied to BHOM dataset with satisfactory results. Conclusion. The results of this study support the idea that decision trees can be applied to medical problems. When we produced a model for risk of mortality, we have shown that the decision trees model has reasonable discrimination and could be considered as an alternative technique to logistic regression. We have shown that a structured methodology using decision trees to develop early warning score has satisfactory result and contributes additional evidence that suggests an algorithmical method can be employed to quickly produce EWSs for employment in particular types of medical purpose.
Subjects/Keywords: 304.640113; Computing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Badriyah, T. (2013). Developing risk of mortality and early warning score models using routinely collected data. (Doctoral Dissertation). University of Portsmouth. Retrieved from https://researchportal.port.ac.uk/portal/en/theses/developing-risk-of-mortality-and-early-warning-score-models-using-routinely-collected-data(88353bb6-9b5d-4bca-ba60-78e33bd8e085).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.588644
Chicago Manual of Style (16th Edition):
Badriyah, Tessy. “Developing risk of mortality and early warning score models using routinely collected data.” 2013. Doctoral Dissertation, University of Portsmouth. Accessed February 26, 2021.
https://researchportal.port.ac.uk/portal/en/theses/developing-risk-of-mortality-and-early-warning-score-models-using-routinely-collected-data(88353bb6-9b5d-4bca-ba60-78e33bd8e085).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.588644.
MLA Handbook (7th Edition):
Badriyah, Tessy. “Developing risk of mortality and early warning score models using routinely collected data.” 2013. Web. 26 Feb 2021.
Vancouver:
Badriyah T. Developing risk of mortality and early warning score models using routinely collected data. [Internet] [Doctoral dissertation]. University of Portsmouth; 2013. [cited 2021 Feb 26].
Available from: https://researchportal.port.ac.uk/portal/en/theses/developing-risk-of-mortality-and-early-warning-score-models-using-routinely-collected-data(88353bb6-9b5d-4bca-ba60-78e33bd8e085).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.588644.
Council of Science Editors:
Badriyah T. Developing risk of mortality and early warning score models using routinely collected data. [Doctoral Dissertation]. University of Portsmouth; 2013. Available from: https://researchportal.port.ac.uk/portal/en/theses/developing-risk-of-mortality-and-early-warning-score-models-using-routinely-collected-data(88353bb6-9b5d-4bca-ba60-78e33bd8e085).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.588644
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