Dissertations / Theses on the topic 'Metrics'
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Remiáš, Richard. "Systém pro podporu metrik v projektech vývoje softwaru." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2012. http://www.nusl.cz/ntk/nusl-236616.
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This work is aimed at design and implementation of system for supporting metrics in software development projects. The procedure of design and application of measurement methods is described. Further metrics data analysis in three domains is described: frequency domain, time domain and relationship domain; together with forms of visualization. Finally, the requirements for system for supporting metrics are enlisted, along with design of architecture and details of implementation.
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Gotham, Mark Robert Haigh. "The metre metrics : characterising (dis)similarity among metrical structures." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709080.
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Kwan, Pak Leung. "Design metrics forensics : an analysis of the primitive metrics in the Zage design metrics." Virtual Press, 1994. http://liblink.bsu.edu/uhtbin/catkey/897490.
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The Software Engineering Research Center (SERC) Design Metrics Research Team at Ball State University has developed a design metric D(G) of the form:D(G) = D~ + DiWhere De is the architectural design metric (external design metric) and D; is the detailed design metric (internal design metric).Questions to be investigated in this thesis are:Why can D, be an indicator of the potential error modules?Why can D; be an indicator of the potential error modules?Are there any significant factors that dominate the design metrics?In this thesis, the report of the STANFINS data is evaluated by using correlation analysis, regression analysis, and several other statistical techiques. The STANFINS study is chosen because it contains approximately 532 programs, 3,000 packages and 2,500,000 lines of Ada.The design metrics study was completed on 21 programs (approximately 24,000 lines of code) which were selected by CSC development teams. Error reports were also provided by CSC personnel.Department of Computer Science
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Smith, Mary Lou. "Assessing software metrics." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ38410.pdf.
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BATISTA, CARLOS FREUD ALVES. "SOFTWARE SECURITY METRICS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2007. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=10990@1.
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PETRÓLEO BRASILEIRO S. A.A dependência cada vez maior da tecnologia de informação (TI) torna software seguro um elemento chave para a continuidade dos serviços de nossa sociedade atual. Nos últimos anos, instituições públicas e privadas aumentaram seus investimentos em segurança da informação, mas a quantidade de ataques vem crescendo mais rapidamente do que a nossa capacidade de poder enfrentálos, colocando em risco a propriedade intelectual, a relação de confiança de clientes e a operação de serviços e negócios apoiados pelos serviços de TI. Especialistas em segurança afirmam que atualmente boa parte dos incidentes de segurança da informação ocorrem a partir de vulnerabilidades encontradas no software, componente presente em boa parte dos sistemas de informação. Para tornar o software fidedigno em relação à segurança, a criação e o uso de métricas de segurança serão fundamentais para gerenciar e entender o impacto dos programas de segurança nas empresas. Porém, métricas de segurança são cobertas de mistério e consideradas bastante difíceis de serem implementadas. Este trabalho pretende mostrar que hoje ainda não é possível termos métricas quantitativas capazes de indicar o nível de segurança que o software em desenvolvimento virá a ter. Necessitam-se, então, outras práticas para assegurar níveis de segurança a priori, ou seja, antes de se por o software em uso.
Today`s growing dependency on information technology (IT) makes software security a key element of IT services. In recent years public and private institutions raised the investment on information security, however the number of attacks is growing faster than our power to face them, putting at risk intellectual property, customer`s confidence and businesses that rely on IT services. Experts say that most information security incidents occur due to the vulnerabilities that exist in software systems in first place. Security metrics are essential to assess software dependability with respect to security, and also to understand and manage impacts of security initiatives in organizations. However, security metrics are shrouded in mystery and very hard to implement. This work intends to show that there are no adequate metrics capable of indicating the security level that a software will achieve. Hence, we need other practices to assess the security of software while developing it and before deploying it.
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Singh, Rajat. "Software Metrics Tool." Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/29766.
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In the current world software applications are becoming more important with each passing day. They are present in all walks of life and it?s difficult to imagine a world without them. It?s a part of every known industry whether it be manufacturing, healthcare, financing. They are available on all forms in personal laptops, mobiles, and tablets. However, there is another challenging task to figure out the quality of the software. There are multiple measures available in the form of software metrics. The objective of this thesis is to present an extensible software for calculating software metrics. This tool proposed is a web application which calculates metrics and statistics for the source code files provided. This tool also provides an ability to the user to extend the tool by adding a metric to the tool.
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Sýkorová, Veronika. "Data Quality Metrics." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-2815.
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The aim of the thesis is to prove measurability of the Data Quality which is a relatively subjective measure and thus is difficult to measure. In doing this various aspects of measuring the quality of data are analyzed and a Complex Data Quality Monitoring System is introduced with the aim to provide a concept for measuring/monitoring the overall Data Quality in an organization. The system is built on a metrics hierarchy decomposed into particular detailed metrics, dimensions enabling multidimensional analyses of the metrics, and processes being measured by the metrics. The first part of the thesis (Chapter 2 and Chapter 3) is focused on dealing with Data Quality, i.e. provides various definitions of Data Quality, gives reasoning for the importance of Data Quality in a company, and presents some of the most common tools and solutions that target to managing Data Quality in an organization. The second part of the thesis (Chapter 4 and Chapter 5) builds on the previous part and leads into measuring Data Quality using metrics, i.e. contains definition and purpose of Data Quality Metrics, places them into the multidimensional context (dimensions, hierarchies) and states five possible decompositions of Data Quality metrics into detail. The third part of the thesis (Chapter 6) contains the proposed Complex Data Quality Monitoring System including description of Data Quality Management related dimensions and processes, and most importantly detailed definition of bottom-level metrics used for calculation of the overall Data Quality.
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Abounader, Joe Raymond. "Object oriented design metrics." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ28170.pdf.
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Liu, Xiaowei. "Object-oriented software metrics." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0013/MQ41734.pdf.
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Brianas, Christopher G. "DoN procurement metrics evaluation." Monterey, California. Naval Postgraduate School, 2005. http://hdl.handle.net/10945/10027.
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MBA Professional ReportThe purpose of this MBA Project was to investigate and provide a comprehensive evaluation of the current Department of the Navy Procurement Metrics that are collected. These metrics are collected by the Office of the Deputy Assistant Secretary of the Navy for Acquisition Management. This project was conducted at their request and with their support. The goal of this project was to determine if the current metrics are the appropriate procurement performance measures. Specifically, this MBA Project attempted to answer these three questions: (1) Do the metrics align with strategy? (2) Can they be measured effectively? and (3) Are they linked to value? The framework used to explore these questions is Robert Simon's Levers of Control model. These procurement metrics are part of a Diagnostic Control System and are being evaluated as such. Simon's Nature of Measures model is also used in the analysis and helps determine metric objectiveness, completeness and responsiveness.
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Datar, Ranjani Milind. "Metrics for software reuse." Virtual Press, 1995. http://liblink.bsu.edu/uhtbin/catkey/958791.
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A major reengineering goal is software reuse. Effective reuse of knowledge, processes and products from previous software developments can reduce costs and increase both productivity and quality in software projects.This thesis extensively tests five projects produced by the graduate software engineering class at Ball State University. Each project has the same set of requirements.Each project is also analyzed based on subjective criteria, for example documentation, use of mnemonics for variable names and ease of understanding. Based on the outcome of testing and subjective analysis, reusable parts are identified.Metrics are collected on all of these projects. This thesis compares the metrics collected on the modules identified for reuse, and the same metrics collected on the non-reusable modules, to determine if there is a statistically significant difference in those metrics between the two groups. Metrics which are good predictors of reusable modules are identified.Metrics which are found to be good predictors of reusable modules include: number of in-parameters, number of data structure manipulations and central calls.Department of Computer Science
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Berthold, Stefan. "Inter-temporal Privacy Metrics." Doctoral thesis, Karlstads universitet, Institutionen för matematik och datavetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-33972.
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Informational privacy of individuals has significantly gained importance after information technology has become widely deployed. Data, once digitalised, can be copied, distributed, and long-term stored at negligible costs. This has dramatic consequences for individuals that leave traces in the form of personal data whenever they interact with information technology, for instance, computers and phones; or even when information technology is recording the personal data of aware or unaware individuals. The right of individuals for informational privacy, in particular to control the flow and use of their personal data, is easily undermined by those controlling the information technology. The objective of this thesis is to study the measurement of informational privacy with a particular focus on scenarios where an individual discloses personal data to a second party which uses this data for re-identifying the individual within a set of other individuals. We contribute with privacy metrics for several instances of this scenario in the publications included in this thesis, most notably one which adds a time dimension to the scenario for modelling the effects of the time passed between data disclosure and usage. The result is a new framework for inter-temporal privacy metrics.
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Blackburn, Craig D. (Craig David) S. M. Massachusetts Institute of Technology. "Metrics for enterprise transformation." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54657.
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Thesis (S.M. in Technology and Policy)--Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2009.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 148-161).
The objective of this thesis is to depict the role of metrics in the evolving journey of enterprise transformation. To this end, three propositions are explored: (i) metrics and measurement systems drive transformation, (ii) employee engagement is a proxy to gauge transformation progress; and (iii) metric considerations enable enterprise transformation when systematically executed as part of a transformation roadmap. To explore this problem, the aerospace measurement community was consulted to help grasp a better understanding of the context in which transformation is currently defined and measured. Once the problem space was defined, the environment of doing research with the enterprise as the unit of analysis was described with the intent of exploring the role of metrics and transformation. In particular, the performance measurement literature helped identify tools and methods used to select metrics to enable decision making at the enterprise level. After this review, two case studies were performed, considering: (1) the implementation of a bottom-up measurement system to drive transformation and (2) the effect of a top-down corporate measurement system on the enterprise. The first case study revealed insights regarding the benefits and challenges of implementing measurement systems and highlighted the use of employee engagement as a proxy to measure enterprise transformation. In the second case study, contemporary measurement issues were discussed and mapped to an Eight Views of the Enterprise analysis to identify critical enterprise interactions.
(cont.) Ultimately, the Lean Advancement Initiative's Enterprise Transformation Roadmap was used as a method for depicting how performance measurement can help enable enterprise transformation. The implications of research in metrics for enterprise transformation span across thee areas: (1) the extensive literature reviews provide an academic contribution for performing enterprise and measurement research; (2) a common language and framework for exploring measurement problems is depicted for practitioners through the case study analysis; and (3) a connection between enterprise measurement and enterprise transformation is established to drive future transformation success.
by Craig D. Blackburn.
S.M.
S.M.in Technology and Policy
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Jones, Charles H. "Spectrum Management Metrics Development." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581851.
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There is a lot of talk about there not being enough spectrum available for use by either government or industry. One would thus suppose that there are clear answers to the questions, "How much spectrum is being used?" and "How much spectrum would be used if it was available?" Unfortunately, clear answers do not exist. In fact, even if you collected data, analyzed it, and generated charts, there is likely to be (and, in fact, have been) long debates about the meaning of those charts. A fundamental problem is that there are no standard metrics for reporting spectrum usage. A well-defined and documented set of metrics would aid in any analysis and discussion of spectrum usage. The Range Commander's Council (RCC) Frequency Management Group (FMG) has initiated a formal Task, FM-37, to develop and standardize a set of spectrum management metrics. These metrics will go beyond simple usage and provide metrics for analysis of spectrum management in general, such as spectrum usage requirements, scheduling efficiencies, and prediction of impacts to spectrum availability. This paper overviews an initial draft of the document being developed under Task FM-37.
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MUTHIAH, KANTHI MATHI NATHAN. "DIAGNOSTIC FACTORY PRODUCTIVITY METRICS." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1060979770.
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Curtis, Ronald Sanger. "Data structure complexity metrics." Buffalo, N.Y. : Dept. of Computer Science, State University of New York at Buffalo, 1994. http://www.cse.buffalo.edu/tech%2Dreports/94%2D39.ps.Z.
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Muthiah, Kanthi M. N. "Diagnaostic factory productivity metrics." Cincinnati, Ohio : University of Cincinnati, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1060979770.
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Hingane, Amruta Laxman. "A POT of Software Metrics: A Physiological Overturn of Technology of Software Metrics." Kent State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=kent1227118085.
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Hingane, Amruta. "A POT of software metrics a physiological overturn of technology of software metrics /." [Kent, Ohio] : Kent State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=kent1227118085.
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Thesis (M.S.)--Kent State University, 2008.Title from PDF t.p. (viewed Jan. 21, 2010). Advisor: Austin Melton. Keywords: Software metrics; comparison; classical measurement. Includes bibliographical references (p. 89-93).
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SARAIVA, Juliana de Albuquerque Gonçalves. "Classifying metrics for assessing object-oriented software maintainability: a family of metrics’ catalogs." Universidade Federal de Pernambuco, 2014. https://repositorio.ufpe.br/handle/123456789/12152.
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FACEPE, INES
Atualmente, Programao Orientada a Objetos (POO) um dos paradigmas mais utilizados. Complementarmente, a manutenibilidade de software considerada um atributo de software que desempenha um papel importante com relao ao nvel de qualidade. Neste contexto, a Manutenibilidade de Software Orientado a Objetos (MSOO) foi estudada atravs de anos e vrios pesquisadores propuseram um elevado nmero de mtricas para a medir. Como consequncia do nmero e da diversidade de mtricas existentes, alm da no padronizao nas definies e nomenclatura, a tomada de deciso sobre quais mtricas podem ser adotadas para realizar estudos em MSOO difcil. Desta forma, um mapeamento sistemtico foi realizado a fim de encontrar quais mtricas so usadas como indicadores de MSOO. Houve uma seleo inicial de 5175 estudos primrios e 138 artigos foram selecionados, resultando em 568 mtricas encontradas. Analisando as 568 mtricas, foram encontradas inconsistncias na nomenclatura destas mtricas, pois havia mtricas com nomes iguais mas significados diferentes (8 casos envolvendo 17 mtricas) e tambm mtricas com nomes diferentes e significados semelhantes (32 casos envolvendo 214 mtricas). Alm disto, uma categorizao destas mtricas foi proposta, sendo identificadas 7 categorias e 17 subcategorias. Estas categorias representam os cenrios de adoo de mtricas de MSOO. Adicionalmente, um portal web de mtricas foi desenvolvido para fornecer informaes sobre as mtricas para outros pesquisadores e tambm gerar catlogos de mtricas de acordo com o contexto da aplicao das mesmas. Este portal tambm pode ser alimentado sistematicamente por outros pesquisadores que lidam com mtricas de MSOO, fazendo com que os resultados deste trabalho possam representar os primeiros passos para padronizao e compreenso destas mtricas. Por ltimo, um quasi-experimento foi realizado para checar o grau de cobertura do catlogo proposto pela abordagem aqui apresentada quando o mesmo comparado com catlogos sugeridos por especialistas. 90% de cobertura foi obtido e este resultado foi confirmado com 99% de grau de confiana usando o Teste de Wilcoxon. De forma complementar, houve uma pesquisa de opinio para checar se os especialistas acharam catlogo gerado usando a nossa abordagem semelhante ou melhor do que o sugerido por eles. Sendo assim, os resultados da anlise da cobertura dos catlogos pode servir como indcios da utilidade da abordagem proposta para a escolha de mtricas na avaliao de MSOO.
Currently, Object-Oriented Programming (OOP) is one of the most used paradigms. Complementarily, the software maintainability is considered a software attribute that plays an important role in quality level. In this context, the Object-Oriented Software Maintainability (OOSM) has been studied through years, and many researchers have proposed a large number of metrics to measure it. As a consequence of the number and diversity of metrics, beyond the no standardization in metrics definition and naming, the decision-making process about which metrics can be adopted in experiments on OOSM, or even their using in software companies is a difficult task. Therefore, a systematic mapping study was conducted in order to find which metrics are used as indicators in OOSM assessments. There was an initial selection of 5175 primary studies and 138 were selected, resulting in 568 metrics found. Analyzing the 568 metrics, inconsistencies in metrics’ naming were found because there were metrics with the same names but different meanings (8 cases involving 17 metrics) and also, there were metrics with different names, however with similar meanings (32 cases involving 214 metrics). Moreover, a metrics’ categorization has been proposed to facilitate decision-making process about which ones have to be adopted, and 7 categories and 17 subcategories were identified. These categories represent the evaluation scenarios where OOSM metrics should be used. Additionally, a metrics’ web portal was developed to provide information about the metrics collected in this research, and to generate metrics’ catalogs according to the context of their adoption. This portal can also be systematically fed by other researchers that work with OOSM metrics, making the results of this work the first steps towards metrics’ standardization, and the improvement of the metrics’ validation. Finally, a quasi-experiment was conducted to check the coverage index of the catalogs generated using our approach over the catalogs suggested by experts. 90% of coverage was obtained and this result was confirmed with 99% of confidential level using the Wilcoxon Test. Complementarily, a survey was conducted to check the experts’ opinion about the catalog generated by the portal when they were compared by the catalogs suggested by the experts. Thus, the coverage evaluation can be the first evidences of the usefulness of the proposed approach for metrics’ choice in OOSM evaluation.
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Stanic, Biljana. "Static code metrics vs. process metrics for software fault prediction using Bayesian network learners." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-29694.
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Software fault prediction (SFP) has an important role in the process of improving software product quality by identifying fault-prone modules. Constructing quality models includes a usage of metrics that describe real world entities defined by numbers or attributes. Examining the nature of machine learning (ML), researchers proposed its algorithms as suitable for fault prediction. Moreover, information that software metrics contain will be used as statistical data necessary to build models for a certain ML algorithm. One of the most used ML algorithms is a Bayesian network (BN), which is represented as a graph, with a set of variables and relations between them. This thesis will be focused on the usage of process and static code metrics with BN learners for SFP. First, we provided an informal review on non-static code metrics. Furthermore, we created models that contained different combinations of process and static code metrics, and then we used them to conduct an experiment. The results of the experiment were statistically analyzed using a non-parametric test, the Kruskal-Wallis test. The informal review reported that non-static code metrics are beneficial for the prediction process and its usage is highly recommended for industrial projects. Finally, experimental results did not provide a conclusion which process metric gives a statistically significant result; therefore, a further investigation is needed.
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Olgun, Ferhat Ramazan. "Evaluation Of Visual Quality Metrics." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613733/index.pdf.
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The aim of this study is to work on the visual quality metrics that are widely
accepted in literature, to evaluate them on different distortion types and to give a
comparison of overall performances in terms of prediction accuracy, monotonicity,
consistency and complexity. The algorithms behind the quality metrics in literature
and parameters used for quality metric performance evaluations are studied. This
thesis also includes the explanation of Human Visual System, classification of visual
quality metrics and subjective quality assessment methods. Experimental results that
show the correlation between objective scores and human perception are taken to
compare the eight widely accepted visual quality metrics.
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Berthold, Stefan. "Towards Inter-temporal Privacy Metrics." Licentiate thesis, Karlstads universitet, Avdelningen för datavetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-7319.
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Informational privacy of individuals has significantly gained importance after information technology has become widely deployed. Data, once digitalised, can be copied and distributed at negligible costs. This has dramatic consequences for individuals that leave traces in form of personal data whenever they interact with information technology. The right of individuals for informational privacy, in particular to control the flow and use of their personal data, is easily undermined by those controlling the information technology. The objective of this thesis is the measurement of informational privacy with a particular focus on scenarios where an individual discloses personal data to a second party, the data controller, which uses this data for re-identifying the individual within a set of others, the population. Several instances of this scenario are discussed in the appended papers, most notably one which adds a time dimension to the scenario for modelling the effects of the time passed between data disclosure and usage. This extended scenario leads to a new framework for inter-temporal privacy metrics. The common dilemma of all privacy metrics is their dependence on the information available to the data controller. The same information may or may not be available to the individual and, as a consequence, the individual may be misguided in his decisions due to his limited access to the data controller’s information when using privacy metrics. The goal of this thesis is thus not only the specification of new privacy metrics, but also the contribution of ideas for mitigating this dilemma. However a solution will rather be a combination of technological, economical and legal means than a purely technical solution.
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Klemola, Tuomas. "Software comprehension, theory and metrics." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ39115.pdf.
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Balakrishnan, AnandKumar. "Concurrent engineering : models and metrics." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0004/MQ43995.pdf.
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Traino, Anthony J. "Automation of software development metrics." [Denver, Colo.] : Regis University, 2008. http://165.236.235.140/lib/ATraino2008.pdf.
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Pagnutti, Douglas. "Anisotropic adaptation: metrics and meshes." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/415.
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We present a method for anisotropic mesh refinement to high-order numerical solutions. We accomplish this by assigning metrics to vertices that approximate the error in that region. To choose values for each metric, we first reconstruct an error equation from the leading order terms of the Taylor expansion. Then, we use a Fourier approximation to choose the metric associated with that vertex. After assigning a metric to each vertex, we refine the mesh anisotropically using three mesh operations. The three mesh operations we use are swapping to maximize quality, inserting at approximate circumcenters to decrease cell size, and vertex removal to eliminate small edges. Because there are no guarantees on the results of these modification tools, we use them iteratively to produce a quasi-optimal mesh. We present examples demonstrating that our anisotropic refinement algorithm improves solution accuracy for both second and third order solutions compared with uniform refinement and isotropic refinement. We also analyze the effect of using second derivatives for refining third order solutions.
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Ferns, Norman Francis. "Metrics for Markov decision processes." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=80263.
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We present a class of metrics, defined on the state space of a finite Markov decision process (MDP), each of which is sound with respect to stochastic bisimulation, a notion of MDP state equivalence derived from the theory of concurrent processes. Such metrics are based on similar metrics developed in the context of labelled Markov processes, and like those, are suitable for state space aggregation. Furthermore, we restrict our attention to a subset of this class that is appropriate for certain reinforcement learning (RL) tasks, specifically, infinite horizon tasks with an expected total discounted reward optimality criterion. Given such an RL metric, we provide bounds relating it to the optimal value function of the original MDP as well as to the value function of the aggregate MDP. Finally, we present an algorithm for calculating such a metric up to a prescribed degree of accuracy and some empirical results.
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Szekelyhidi, Gabor. "Extremal metrics and K-stability." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439160.
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Gorley, Paul Ward. "Metrics for stereoscopic image compression." Thesis, Durham University, 2012. http://etheses.dur.ac.uk/3471/.
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Metrics for automatically predicting the compression settings for stereoscopic images, to minimize file size, while still maintaining an acceptable level of image quality are investigated. This research evaluates whether symmetric or asymmetric compression produces a better quality of stereoscopic image. Initially, how Peak Signal to Noise Ratio (PSNR) measures the quality of varyingly compressed stereoscopic image pairs was investigated. Two trials with human subjects, following the ITU-R BT.500-11 Double Stimulus Continuous Quality Scale (DSCQS) were undertaken to measure the quality of symmetric and asymmetric stereoscopic image compression. Computational models of the Human Visual System (HVS) were then investigated and a new stereoscopic image quality metric designed and implemented. The metric point matches regions of high spatial frequency between the left and right views of the stereo pair and accounts for HVS sensitivity to contrast and luminance changes in these regions. The PSNR results show that symmetric, as opposed to asymmetric stereo image compression, produces significantly better results. The human factors trial suggested that in general, symmetric compression of stereoscopic images should be used. The new metric, Stereo Band Limited Contrast, has been demonstrated as a better predictor of human image quality preference than PSNR and can be used to predict a perceptual threshold level for stereoscopic image compression. The threshold is the maximum compression that can be applied without the perceived image quality being altered. Overall, it is concluded that, symmetric, as opposed to asymmetric stereo image encoding, should be used for stereoscopic image compression. As PSNR measures of image quality are correctly criticized for correlating poorly with perceived visual quality, the new HVS based metric was developed. This metric produces a useful threshold to provide a practical starting point to decide the level of compression to use.
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Masoud, F. A. "Quality metrics in software engineering." Thesis, University of Liverpool, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381358.
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In the first part of this study software metrics are classified into three categories: primitive, abstract and structured. A comparative and analytical study of metrics from these categories was performed to provide software developers, users and management with a correct and consistent evaluation of a representative sample of the software metrics available in the literature. This analysis and comparison was performed in an attempt to: assist the software developers, users and management in selecting suitable quality metric(s) for their specific software quality requirements and to examine various definitions used to calculate these metrics. In the second part of this study an approach towards attaining software quality is developed. This approach is intended to help all the people concerned with the evaluation of software quality in the earlier stages of software systems development. The approach developed is intended to be uniform, consistent, unambiguous and comprehensive and one which makes the concept of software quality more meaningful and visible. It will help the developers both to understand the concepts of software quality and to apply and control it according to the expectations of users, management, customers etc.. The clear definitions provided for the software quality terms should help to prevent misinterpretation, and the definitions will also serve as a touchstone against which new ideas can be tested.
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Burton, Douglas R. "Software reliability management through metrics." Thesis, Monterey, California: Naval Postgraduate School, 1993. http://hdl.handle.net/10945/24227.
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Neil, Martin David. "Statistical modelling of software metrics." Thesis, London South Bank University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332031.
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Henley, Richard. "Functional Metrics in Axiomatic Design." Digital WPI, 2017. https://digitalcommons.wpi.edu/etd-dissertations/492.
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The objective of this work is to study, functional metrics (FMs) in Axiomatic Design (Suh 1990), their relationship to each other within the functional domain, and understand ways in which they add value to the design process and the design solution, as well as variables that influence that value
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Robison, Dawn M. 1967. "Transformational metrics for product development." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/34724.
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Thesis (S.M.)--Massachusetts Institute of Technology, System Design & Management Program, 2001.Includes bibliographical references (p. 113-116).
The research provides a case study of performance metrics within the framework of the product development process and team effectiveness. A comparative analysis of eight product development teams was done to evaluate the teams' effectiveness in achieving three outcomes - customer satisfaction, shareholder value and time to market. A survey was conducted to evaluate areas where no formal documentation existed and to supplement the existing historical data that were collected from databases and documents. The analysis was done on two levels - by program team and individual respondent - and looked at the level of performance and effort that influenced the specific outcomes. It was concluded that performance metrics are used within an organization to drive actions, to assess progress and to make decisions. Conclusions were consistent with the premise that people perform to how they are measured and that the team effectiveness can be driven by a set of performance metrics that are aligned with the strategic goal of the organization. Transformational metrics were developed within the framework of understanding the interdependence of the social and technical systems. Choosing the right metrics is critical to an organization's success because the metrics directly influence behavior and establish the culture within the firm. It was determined that if the right combinations of metrics are selected, teams will act in such a way as to maximize their effectiveness and behave in a manner that achieves the corporate goals.
by Dawn M. Robison.
S.M.
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Johnson, John H. (John Howard) 1965. "Metrics for a platform team." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/88321.
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Haydamous, Linda (Linda A. ). "Predictive metrics for supply chains." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/53048.
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Thesis (M. Eng. in Logistics)--Massachusetts Institute of Technology, Engineering Systems Division, 2009.Includes bibliographical references (leaves 95-97).
The economic crisis that the world has been experiencing since 2008 has led several organizations to announce record losses and bankruptcies. But couldn't the chief factors have been predicted, at least to some extent? What if the critical success factors of a company are predicted and evaluated, wouldn't that eliminate, or at least cushion, such misfortunes? In this thesis I provide a framework for developing predictive metrics for supply chains. The goal of these metrics is to provide a key set of indicators, aligned with the business strategy, that provide early warnings of problems or early signals of successful project completion. They allow organizations to analyze risks and provide supply chain managers with a forward-looking approach to align their strategy with performance outcomes. My target audience is the Aerospace and Defense (A&D) industry but the results could be expanded across industries. There is no one-size-fits-all set of predictive metrics. Finding the optimal set depends on the project focus and the supplier type. In this thesis I measure performance in the four areas of cost, schedule, quality and technical. I use system dynamics models to develop my framework and employ three A&D programs as case-study subjects to illustrate the implementation of the framework.
by Linda Haydamous.
M.Eng.in Logistics
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Feix, Birte. "Hyperkähler metrics on cotangent bundles." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621571.
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Ye, Luming. "Perception Metrics in Medical Imaging." Thesis, KTH, Medicinsk teknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102186.
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Sundfors, David. "Performance Metrics for Sustainability Value." Licentiate thesis, KTH, Bygg- och fastighetsekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-200315.
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The trend that started with Green Building has moved on into Sustainable Building. But how do we know that something is really sustainable? This project started out with the intention to find a small set of performance indicators for commercial buildings, which could be continuously measured and monitored over time, which would give a good indication of the level of sustainability of the building and as such, and be presented as an additional part in a valuation. Since it has been shown several times over by now that properties that can prove they are sustainable generate a higher market price, these performance indicators would be interesting from the perspective of a valuation professional. In order to find these parameters, the project began with three of the international environmental certification systems and one Swedish system, to study which parameters are considered important in these systems. Following that study, surveys and interviews within the real estate business in Sweden provided an insight into how performance is measured today. Lastly, by combining those studies with a review of the sustainability information considered important by the Royal Institute of Chartered Surveyors (RICS) from a valuation professional’s point of view and an updated literature review, a simple set of indicators could indeed be identified. There is however, still a problem with defining their actual impact on market price. Other authors have come to the conclusion that although sustainability can be measured to some extent, incorporating that information into valuation of the property in a statistical secure way is not yet possible. We need to increase our knowledge about the performance of our built environment and the presented key performance indicators in this thesis would help us do just that. We can also see that real estate owners in many cases already gather much information about their buildings, but they lack the incentives to share that data with others.QC 20170124
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KESKAR, HARSHAL S. "SUPPLIER SELECTION METRICS AND METHODOLOGY." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1085680712.
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Bronnle, Till Andreas. "Deformation constructions of extremal metrics." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/7073.
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In the first part of this thesis we investigate the deformation theory of compact constant scalar curvature Kähler (cscK) and extremal Kähler manifolds. In particular, we will characterise deformations of cscK- and extremal Kähler manifolds which again admit a cscK- or extremal Kähler metric, in terms of stability in the sense of geometric invariant theory. In a second part we will investigate a different problem. We will extend the adiabatic methods used by Hong and Fine in the study of cscK-metrics to the study of extremal metrics on ruled manifolds. The analysis in the case of extremal metrics being more involved will bring in some new aspects in carrying out this construction.
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Roth, John Charles. "Perturbations of Kähler-Einstein metrics /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/5737.
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Chen, Pengwen. "Bregman metrics and their applications." [Gainesville, Fla.] : University of Florida, 2007. http://purl.fcla.edu/fcla/etd/UFE0021037.
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Shepperd, Martin John. "System architecture metrics : an evaluation." n.p, 1990. http://ethos.bl.uk/.
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LaGatta, Tom. "Geodesics of Random Riemannian Metrics." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/193749.
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We introduce Riemannian First-Passage Percolation (Riemannian FPP) as a new model of random differential geometry, by considering a random, smooth Riemannian metric on R^d . We are motivated in our study by the random geometry of first-passage percolation (FPP), a lattice model which was developed to model fluid flow through porous media. By adapting techniques from standard FPP, we prove a shape theorem for our model, which says that large balls under this metric converge to a deterministic shape under rescaling. As a consequence, we show that smooth random Riemannian metrics are geodesically complete with probability one.In differential geometry, geodesics are curves which locally minimize length. They need not do so globally: consider great circles on a sphere. For lattice models of FPP, there are many open questions related to minimizing geodesics; similarly, it is interesting from a geometric perspective when geodesics are globally minimizing. In the present study, we show that for any fixed starting direction v, the geodesic starting from the origin in the direction v is not minimizing with probability one. This is a new result which uses the infinitesimal structure of the continuum, and for which there is no equivalent in discrete lattice models of FPP.
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Shepperd, Martin John. "System architecture metrics : an evaluation." Thesis, Open University, 1991. http://oro.open.ac.uk/57340/.
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The research described in this dissertation is a study of the application of measurement, or metrics for software engineering. This is not in itself a new idea; the concept of measuring software was first mooted close on twenty years ago. However, examination of what is a considerable body of metrics work, reveals that incorporating measurement into software engineering is rather less straightforward than one might pre-suppose and despite the advancing years, there is still a lack of maturity. The thesis commences with a dissection of three of the most popular metrics, namely Haistead's software science, McCabe's cyclomatic complexity and Henry and Kafura's information flow - all of which might be regarded as having achieved classic status. Despite their popularity these metrics are all flawed in at least three respects. First and foremost, in each case it is unclear exactly what is being measured: instead there being a preponderance of such metaphysical terms as complexIty and qualIty. Second, each metric is theoretically doubtful in that it exhibits anomalous behaviour. Third, much of the claimed empirical support for each metric is spurious arising from poor experimental design, and inappropriate statistical analysis. It is argued that these problems are not misfortune but the inevitable consequence of the ad hoc and unstructured approach of much metrics research: in particular the scant regard paid to the role of underlying models. This research seeks to address these problems by proposing a systematic method for the development and evaluation of software metrics. The method is a goal directed, combination of formal modelling techniques, and empirical ealiat%or. The met\io s applied to the problem of developing metrics to evaluate software designs - from the perspective of a software engineer wishing to minimise implementation difficulties, faults and future maintenance problems. It highlights a number of weaknesses within the original model. These are tackled in a second, more sophisticated model which is multidimensional, that is it combines, in this case, two metrics. Both the theoretical and empirical analysis show this model to have utility in its ability to identify hardto- implement and unreliable aspects of software designs. It is concluded that this method goes some way towards the problem of introducing a little more rigour into the development, evaluation and evolution of metrics for the software engineer.
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Jorgensen, Gisle J. "Metrics for Aspect Mining Visualization." Diss., NSUWorks, 2018. https://nsuworks.nova.edu/gscis_etd/1048.
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Aspect oriented programming has over the last decade become the subject of intense research within the domain of software engineering. Aspect mining, which is concerned with identification of cross cutting concerns in legacy software, is an important part of this domain. Aspect refactoring takes the identified cross cutting concerns and converts these into new software constructs called aspects. Software that have been transformed using this process becomes more modularized and easier to comprehend and maintain. The first attempts at mining for aspects were dominated by manual searching and parsing through source code using simple tools. More sophisticated techniques have since emerged including evaluation of execution traces, code clone detection, program slicing, dynamic analysis, and use of various clustering techniques. The focus of most studies has been to maximize aspect mining performance measured by various metrics including those of aspect mining precision and recall. Other metrics have been developed and used to compare the various aspect mining techniques with each other. Aspect mining automation and presentation of aspect mining results has received less attention. Automation of aspect mining and presentation of results conducive to aspect refactoring is important if this research is going to be helpful to software developers. This research showed that aspect mining can be automated. A tool was developed which performed automated aspect mining and visualization of identified cross cutting concerns. This research took a different approach to aspect mining than most aspect mining research by recognizing that many different categories of cross cutting concerns exist and by taking this into account in the mining process. Many different aspect mining techniques have been developed over time, some of which are complementary. This study was different than most aspect mining research in that multiple complementary aspect mining algorithms was used in the aspect mining and visualization process.
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Russell, Keith A. (Keith Anthony) 1966. "Reengineering metrics systems for aircraft sustainment teams : a metrics thermostat for use in strategic priority management." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/29212.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics; and, (S.M.)--Massachusetts Institute of Technology, Technology and Policy Program, February, 2001.Includes bibliographical references (p. 133-134).
We explore the selection of metrics for the United States Air Force weapon system sustainment team empirically with emphasis placed on the incentive, structural and predictive implications of metrics. We define the term "metric" to include measures that employees impact through their efforts. We believe that even in a not-for-profit organization such as the Air Force, by putting emphasis (or weight) on a performance metric, the organization establishes inherent incentive structures within which employees will act to maximize their best interests. However, we believe that not-for-profit organizations differ from for-profit ones in their inherent structure since profit becomes cost and several mission-oriented outcome variables share a fundamental importance in achieving the organizations goals. We seek an understanding of the structural composition of Air Force sustainment's metrics systems that, when coupled with a method for practical selection of a high-quality set of metrics (and weights), will align the incentives of employees with the interests of the organization. The empirical study is grounded in emerging theoretical work, which uses our above definition of a metric to purpose a theoretical metrics feedback construct called the Metrics Thermostat. System structure is explored through common correlation and regression analysis as well as more sophisticated structural equation modeling and systems dynamics techniques used to explore potential feedback loops. The F- 16 is used as a case study for this problem, and the metrics systems are considered from the front-line base-level point of view of Air Force active duty, Air National Guard and Air Force Reserve bases worldwide. 96 low-level metrics, covariates and outcomes were examined for 45 F- 16 bases for a period of five years. Outcome importance was determined through personal interviews and internal archival documentation. -- The metrics, covariates and outcomes in the study are very interrelated. -- The primary indicator of overall performance is Command (ACC, USAFE, etc.) -- Increased Fix Rate increases Utilization, but increased Utilization decreases Fix Rate. -- Cannibalization Rate is associated with higher Fix Rates but lower Mission Capability, Flying Scheduling Effectiveness, and Aircraft Utilization. -- Active duty Mission Capability is predicted well from the dataset such that: * Active duty commands have higher mission capability. * Mission Capability is slightly higher in cool moist climates. * Increased Aircraft Utilization, Repeat Discrepancies and Flying Scheduling Effectiveness are all associated with higher Mission Capability. * Increased Break Rates and Unscheduled (engine) Maintenance are associated with lower Mission Capability. The model appears to be valid for peacetime actions only.
by Keith A. Russell.
S.M.
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Morales, Aguirre Marco Antonio. "Metrics for sampling-based motion planning." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2462.
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