Dissertations / Theses on the topic 'Web metrics'
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Asif, Sajjad. "Investigating Web Size Metrics for Early Web Cost Estimation." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-16036.
Full textArenberg, Tom. "Impact of Web Metrics on News Decisions." Thesis, The University of Alabama, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10255179.
Full textMany news organizations are trying to maximize their online audience in an attempt to bring greater exposure to their work and attract advertising. Grounded in Resource Dependency Theory and System of Professions theory, this comparative case study of two divergent news organizations sought to identify how degree of pursuit of audience metrics affects the nature of an organization’s journalism. The study showed that differences in degree of pursuit led to differences in the nature of news content and in the nature of determinations of newsworthiness. A greater emphasis on metrics led one organization toward a lower percentage of civic issue stories, less story depth, a better understanding of online traffic creation, greater use of text and ideas from public relations professionals, and less use of traditional journalistic abstract knowledge to determine newsworthiness. Crucially, however, in the newsroom of greater metric use, a commitment to the traditional journalistic norm of civic duty served to reduce the differences between the organizations. The implications for journalism are discussed.
Zahran, Dalal Ibrahem. "Web engineering for the evaluation of large complex web systems : methodologies in web metrics." Thesis, Edinburgh Napier University, 2016. http://researchrepository.napier.ac.uk/Output/978652.
Full textMiehling, Mathew J. "Correlation of affiliate performance against web evaluation metrics." Thesis, Edinburgh Napier University, 2014. http://researchrepository.napier.ac.uk/Output/7250.
Full textDash, Suvendu Kumar. "Context-based metrics for evaluating changes to web pages." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/79.
Full textZhang, Yanlong. "Quality Modelling and Metrics of Web-based Information Systems." Thesis, Oxford Brookes University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492158.
Full textWeischedel, Birgit, and n/a. "The use of web metrics for online strategic decision-making." University of Otago. Department of Marketing, 2005. http://adt.otago.ac.nz./public/adt-NZDU20060809.132936.
Full textNoruzi, Alireza. "Web Presence and Impact Factors for Middle-Eastern Countries." Information Today, Inc, 2006. http://hdl.handle.net/10150/106515.
Full textDibrova, Alisa. "Web analytics. Website analysis with Google Analytics and Yandex Metrics." Thesis, Malmö högskola, Fakulteten för kultur och samhälle (KS), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-22200.
Full textAtterlönn, Anton, and Benjamin Hedberg. "GUI Performance Metrics Framework : Monitoring performance of web clients to improve user experience." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-247940.
Full textNär man använder grafiska gränssnitt upplevs lång responstid och fördröjning som de främsta problemen. Dessa problem är frustrerande och ger användare en negativ syn på både det grafiska gränssnittet och företaget som skapat det.Det är viktigt att grafiska gränssnitt är intuitiva, lättanvända och lättfattliga samtidigt som de levererar hög prestanda. Det finns faktorer som påverkar dessa egenskaper som är utanför programmerarnas händer, t.ex. användarens internetuppkoppling och hårdvara. Eftersom varje användare har olika kombinationer av internetuppkoppling och hårdvara är det svårt att tillfredsställa alla och samtidigt tillhandahålla ett intuitivt och responsivt gränssnitt.Målet med denna studie är att hitta ett sätt att övervaka prestandan av ett grafiskt gränssnitt där begreppet prestanda omfattar responsiviteten och hastigheten av den grafiska renderingen, och genom detta möjliggöra förbättring av responstider och renderingstider.Ett ramverk som övervakar prestandan av ett grafiskt gränssnitt utvecklades. Ramverket samlar in relevant prestandamässig data om det grafiska gränssnittet och sparar datan i en databas. Datan som sparats kan sedan bli manuellt analyserad av utvecklare för att hitta svagheter i systemets prestanda. Detta uppnås utan att störa det grafiska gränssnittet och utan att ha någon negativ påverkan på användarupplevelsen.
Cutshall, Robert C. "An investigation of success metrics for the design of e-commerce Web sites." Thesis, University of North Texas, 2004. https://digital.library.unt.edu/ark:/67531/metadc4465/.
Full textMagapu, Akshay Kumar, and Nikhil Yarlagadda. "Performance, Scalability, and Reliability (PSR) challenges, metrics and tools for web testing : A Case Study." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-12801.
Full textFreire, André Pimenta. "Acessibilidade no desenvolvimento de sistemas web: um estudo sobre o cenário brasileiro." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-06052008-101644/.
Full textUniversal access to content in Web based systems is an essential aspect to enable everyone to have access to it, regardless of disabilities or any other restrictions. Several studies indicate that, although federal legislation regarding to Web accessibility have been promulgated in many countries, accessibility is still an issue for many Web sites. The limited awareness of accessibility by people involved in Web development and the lack of appropriate use of development techniques in the development of applications have a deep impact on accessibility. A few surveys have been carried out to identify the main characteristics of Web developers regarding accessibility concepts and techniques for accessibility. However, the studies reported up to this date have only investigated the use of a restricted set of techniques by developers. Besides, they have not addressed the analysis of the correlation between the answers provided by the subjects and the accessibility level of their Web pages. The proposal of the work presented in this master\'s thesis is the development of a survey on the accessibility awareness and on the use of techniques for accessibility by people involved in the development of Web based systems. Automatic metric based accessibility evaluations on the Web sites developed by the subjects were carried out to support the investigation of the impacts that the issues investigated have on the Web pages accessibility and on the accessibility awareness. The survey was answered by 613 subjects from all Brazilian states. The results show that in Brazil the accessibility awareness is still very limited. Training people involved in Web projects on technical issues alone is not enough. It is necessary to promote a wider awareness of accessibility and of the problems people with different restrictions and abilities deal with when using the Web
Cheatham, Michelle Andreen. "The Properties of Property Alignment on the Semantic Web." Wright State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=wright1407775249.
Full textBirkestedt, Sara, and Andreas Hansson. "Can web-based statistic services be trusted?" Thesis, Blekinge Tekniska Högskola, Avdelningen för programvarusystem, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5282.
Full textEtt stort antal statistiksystem existerar idag för att ta reda på information om besökare på webbplatser. Men hur pålitliga är egentligen dessa tjänster? Syftet med uppsatsen är att ta reda på hur pålitliga de är när det gäller att visa antal unika besökare och totalt antal sidvisningar. Hypotesen vi har formulerat är: Webb-baserade statistiksystem visar inte ett korrekt resultat. För att testa detta har vi gjort praktiska tester av fem olika webb-baserade statistiktjänster som användes på samma webbplats under samma period. Informationen som dessa tjänster registrerade lagrade vi i en databas, samtidigt som vi använde ett eget kontrollprogram för att mäta samma uppgifter. Vi har också genomfört en intervju med en person som arbetar med webbstatistik på ett webbföretag. Undersökningen visar att resultatet mellan de olika tjänsterna skiljer sig mycket, både jämfört med varandra och med kontrollprogrammet. Detta gällde både antal sidvisningar och unika besökare. Detta leder till slutsatsen att systemen inte visar korrekta uppgifter, vilket gör att vi kan verifiera vår hypotes. Även intervjun som utfördes visade på de problem som finns med att mäta besökarstatistik.
Imran, Muhammad. "The impact of consolidating web based social networks on trust metrics and expert recommendation systems." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/385200/.
Full textPonomarenko, Maksym. "Maintenance of the Quality Monitor Web-Application." Thesis, Linnéuniversitetet, Institutionen för datavetenskap (DV), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-28816.
Full textTibbo, Helen R., and Lokman I. Meho. "Finding Finding Aids on the World Wide Web." Society of American Archivists, 2001. http://hdl.handle.net/10150/105720.
Full textFan, Michael. "Web application in radiotherapy: the standardization of treatment planning and development of quantitative plan quality metrics." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119750.
Full textDes efforts ont ete fait envers la standarisation de la planification de traitements pour le programme de radiochirurgie stereotactique (SRS) a l'Hopital General Juifde Montreal. Un modele standardise d'objectifs de dose pour la SRS a ete construit en collaboration avec les medecins clinique. Une plate-forme web a ete programme afin de faire l'analyse des donnees de recherche. Le web a ete choisis comme hote de la plate-forme en raison de la facilite de distribution et d'adaptation des applications web. Un module de redaction de rapports automatique est inclue dans la plate-forme pour effectuer une analyse statistique de la dose pour chaque plan et ensuite rediger un rapport. Le module a ete implante en clinique avec succes et une reduction marquee de la charge de travail requise pour l'evaluation des plans de traitement pour la SRS. Un total de 35 plans ont ete approuve pour l'importation dans la plateforme web pour l'analyse de donnees. Un metrique quantificatif surnomme L'index de Qualite (QI) a ete developpe pour evaluer l'adherence des plans au modele standard construit. Les resultats demontrent une hausse du QI ainsi qu'une baisse de la variance entre chaque plans suite a l'implantation de la plate-forme web. D'autres etudes doivent etre performes pour valider le QI en tant qu'indicateur de qualite de plans.
Hejl, Radomír. "Analytika obsahových webů." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-124785.
Full textTonkin, Emma. "Searching the long tail: Hidden structure in social tagging." dLIST, 2006. http://hdl.handle.net/10150/105565.
Full textChignell, Mark, Jacek Gwizdka, and Richard Bodner. "Discriminating Meta-Search: A Framework for Evaluation." Elsevier, 1999. http://hdl.handle.net/10150/105146.
Full textThere was a proliferation of electronic information sources and search engines in the 1990s. Many of these information sources became available through the ubiquitous interface of the Web browser. Diverse information sources became accessible to information professionals and casual end users alike. Much of the information was also hyperlinked, so that information could be explored by browsing as well as searching. While vast amounts of information were now just a few keystrokes and mouseclicks away, as the choices multiplied, so did the complexity of choosing where and how to look for the electronic information. Much of the complexity in information exploration at the turn of the twenty-first century arose because there was no common cataloguing and control system across the various electronic information sources. In addition, the many search engines available differed widely in terms of their domain coverage, query methods, and efficiency. Meta-search engines were developed to improve search performance by querying multiple search engines at once. In principle, meta-search engines could greatly simplify the search for electronic information by selecting a subset of first-level search engines and digital libraries to submit a query to based on the characteristics of the user, the query/topic, and the search strategy. This selection would be guided by diagnostic knowledge about which of the first-level search engines works best under what circumstances. Programmatic research is required to develop this diagnostic knowledge about first-level search engine performance. This paper introduces an evaluative framework for this type of research and illustrates its use in two experiments. The experimental results obtained are used to characterize some properties of leading search engines (as of 1998). Significant interactions were observed between search engine and two other factors (time of day, and Web domain). These findings supplement those of earlier studies, providing preliminary information about the complex relationship between search engine functionality and performance in different contexts. While the specific results obtained represent a time-dependent snapshot of search engine performance in 1998, the evaluative framework proposed should be generally applicable in the future.
Manuel, Sue. "Strategic management and development of UK university library websites." Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/10958.
Full textThorve, Swapna. "EpiViewer: An Epidemiological Application For Exploring Time Series Data." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/86829.
Full textMaster of Science
We present EpiViewer, a time series exploration dashboard where users can upload epidemiological time series data from a variety of sources and compare, organize, and track how data evolves as an epidemic progresses. EpiViewer is a single page web application that provides a framework for exploring, comparing, and organizing temporal datasets. It offers a variety of features for convenient filtering and analysis of epicurves based on meta-attribute tagging. EpiViewer also provides a platform for sharing data between groups for better comparison and analysis.
Xu, Jinmeng. "Comparing Web Accessibility between Major Retailers and Novelties for E-Commerce." Thesis, Tekniska Högskolan, Jönköping University, JTH, Datateknik och informatik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-49001.
Full textPíč, Karel. "Webová aplikace pro hodnocení kvality obrazu a videa." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399186.
Full textLima, Alysson Alves de. "Seleção automatizada de serviços web baseada em métricas funcionais e estruturais." Universidade Federal da Paraíba, 2016. http://tede.biblioteca.ufpb.br:8080/handle/tede/9037.
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Software Engineering is a discipline that encompasses all aspects of the production of a software system, from the early stages of the system specification to maintenance, when the system is already being used. A very interesting area in Software Engineering is software reuse, which impacts positively on reducing time, costs and risks in software development processes. Therefore, it can be stated that software reuse improves not only the software development process, but also the product itself. One of the main approaches for software reuse is service oriented development, which adopts the Service-Oriented Architecture (SOA) paradigm. In SOA, services represent a natural evolution of component-based development, and therefore can be defined as loosely coupled, reusable software components, that encapsulate discrete functionality, can be distributed and remotely accessed through coding. It is important to highlight that while SOA is an architectural paradigm for developing software systems, Web Services represent the most widely existing technology adopted to implement SOA exploring protocols based on Internet standards and on XML. With the growth of the market and the use of web services, the tendency is always increase the number of services available for assembly applications in different contexts, making impractical the task of manually selecting the services required to compose a software system. Consequently, one can state that the effort needed to select the required services tends to increase more and more, creating a problem with a large and complex search space, making it necessary the automation of the selection process based on metaheuristic search techniques. In this context, the proposed work aims to automate the web services selection process using techniques of Search-Based Software Engineering, in which the selection strategy is guided by structural and functional metrics that have the purpose of evaluating the similarity between the specifications and respective implementations of candidate services as well as their dependencies, thus reducing the effort of adaptation and integration of web services developed by different suppliers.
Engenharia de Software é uma disciplina que engloba todos os aspectos da produção de um sistema de software, incluindo desde os estágios iniciais da especificação do sistema até sua manutenção, quando o sistema já está sendo utilizado. Uma área de estudo bastante interessante da Engenharia de Software é o reuso de software, que impacta positivamente na redução do tempo, dos custos e dos riscos provenientes de um processo de desenvolvimento de software. Portanto, é possível afirmar que o reuso de software melhora, não apenas o processo de desenvolvimento de software, mas também o próprio produto. Uma das principais abordagens de reuso de software é o desenvolvimento orientado a serviços, que adota o paradigma da Arquitetura Orientada a Serviços (SOA – Service-Oriented Architecture). No paradigma SOA, serviços representam uma evolução natural do desenvolvimento baseado em componentes, e, portanto, podem ser definidos como componentes de software de baixo acoplamento, reusáveis, que encapsulam funcionalidades discretas, que podem ser distribuídos e acessados remotamente de forma programática. É importante destacar que, enquanto SOA é um paradigma arquitetural para desenvolvimento de sistemas de software, serviços web (web services) representam a tecnologia existente mais amplamente adotada para implementar SOA explorando protocolos baseados em padrões da internet e em XML (eXtensible Markup Language). Com o crescimento do mercado e utilização dos serviços web, a tendência é sempre aumentar o número de serviços disponíveis para montagem de aplicações em diferentes contextos, tornando impraticável a tarefa de selecionar de forma manual os serviços requeridos para compor um sistema de software. Consequentemente, é possível afirmar que o esforço necessário para selecionar os serviços requeridos tende a aumentar cada vez mais, gerando um problema com um grande e complexo espaço de busca, tornando necessária a automatização do processo de seleção baseada em técnicas de busca metaheurística. Neste contexto, o trabalho proposto visa automatizar o processo de seleção de serviços web utilizando técnicas da Engenharia de Software Baseada em Buscas, cuja estratégia de seleção é orientada por métricas funcionais e estruturais, que têm o propósito de avaliar a similaridade entre as especificações e as respectivas implementações dos serviços candidatos, bem como as suas dependências, reduzindo assim o esforço de adaptação e integração de serviços web desenvolvidos por fornecedores distintos.
Філон, А. А. "Комнлексне забезпечення якооті системи «Оцінка культури інформаційної безпеки організацій»." Thesis, Чернігів, 2021. http://ir.stu.cn.ua/123456789/25136.
Full textМетою роботи є комплексне забезпечення якості веб-систем анкетування на різних етапах життєвого циклу, на прикладі програмного засобу «Оцінка культури інформаційної безпеки організацій». Об’єктом роботи є методи і моделі комплексної оцінки якості веб-систем анкетування. Предметом роботи є критерії і метрики оцінки якості веб-систем анкетування. Розроблювана система виконує такі завдання: аналіз стандартів якості ПЗ; виокремлення поняття та завдань тестування; формування процесу тестування відповідно до ітераційних методологій; аналіз сучасних підходів процесу тестування веб-систем; розробка концепції (стратегії) тестування; виявлення ступеню покриття вимог тестами та інших показників тестування; розробка комплексної метрики оцінювання якості веб-систем анкетування; залучення засобів автоматизації для прискорення та розширення процесів тестування; проведення тестування системи відповідно до розробленої стратегії тестування веб-систем анкетування; визначення якості реалізованого продукту. Практичною цінністю є можливість використання розробниками і тестувальниками запропонованої метрики та алгоритму для підвищення швидкості процесів тестування подібних систем на різних етапах життєвого циклу. Наукова новизна даної роботи полягає в тому, що запропоновано метрику для комплексної оцінки якості системи «Оцінка культури інформаційної безпеки організацій», яка на відміну від існуючих може використовуватися з різними методами тестування. При подальшій розробці можлива адаптація комплексної метрики оцінювання якості тестованої системи відповідно до залучених нових модулів та видів тестування. Результати дипломної роботи були висвітлені в тезах всеукраїнської конференції.
The purpose of the work is integrated quality assurance evaluation of web questionnaire systems at different life cycle stages, on the example of the software “Assessment of the organization's information security culture”. The object of the work are methods and models for integrated assessing evaluation of web questionnaire systems quality. The subject of the work are criteria and metrics for assessing evaluation of web questionnaire systems quality. The developed system performs the following tasks: – Analysis of software quality standards; – Highlighting the concept and objectives of testing; – Formation of the testing process according to iterative methodologies; – Analysis of modern approaches to the process of testing for evaluation web questionnaire systems; – Development of the testing concept (strategy); – Identification of test requirements coverage and other testing indicators; – Development of integrated metric for assessing the quality evaluation of web questionnaire systems; – Automation tools involvement to speed up and expand testing processes; – Testing the system in accordance with the developed test strategy for evaluation of web questionnaire systems; – Determining the quality of the developed product. The practical value is the ability of developers and testers to use the proposed metric and algorithm to increase the speed of testing processes for such systems at different life cycle stages. The scientific novelty of this work is seen in the proposed metric for integrated quality assessment of the system “Assessment of the organization's information security culture”, which in contrast to existing ones can be used with different testing methods. It is possible to adapt the integrated metric for assessing the quality of system under test according to the new involved modules and testing types during further development. The results of the qualification work were covered in the thesis of the All- Ukrainian conference.
Oliveira, Ricardo Ramos de. "Avaliação de manutenibilidade entre as abordagens de web services RESTful e SOAP-WSDL." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-24072012-164751/.
Full textSoftware Engineering has developed techniques and methods to support the development of reliable software, exible, low development cost and easy maintenance. The evaluation of maintainability contributes in this direction, providing the means to produce software with high quality. This paper presents an controlled experiment to evaluate the maintainability between the approaches of web services: RESTful and SOAP-WSDL. This evaluation was conducted using four programs implemented in the Java programming language, using the same architecture. Based on the designed architecture, Web services were developed as objects used in case studies, allowing to evaluate and compare its maintainability. The results showed relationships between the information on the cost and quality of web services, which contributed to clarify the criteria for obtaining a good relationship between the cost of maintenance and evolution of web services. In conclusion, the results indicate the RESTful web services are more maintainable server side in contrast to the SOAP-WSDL web services are more maintainable client side. Studies in controlled experiments are promising and may help reduce the maintenance cost of web services, thus improving overall software quality
Tang, Ling-Xiang. "Link discovery for Chinese/English cross-language web information retrieval." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/58416/1/Ling-Xiang_Tang_Thesis.pdf.
Full textSouza, Iara Vidal Pereira de. "Altmetria: métricas alternativas do impacto da comunicação científica." Niterói, 2017. https://app.uff.br/riuff/handle/1/2811.
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A proposta deste trabalho é traçar o estado da arte da altmetria, definida como o estudo, a criação e a utilização de indicadores relacionados à interação de usuários com produtos de pesquisa diversos no âmbito da Web Social – visualizações, downloads, citações, reutilizações, compartilhamentos, etiquetagens, comentários, entre outros. Para entender o contexto de surgimento da altmetria, exploramos as especificidades e potencialidades da Web Social e as características da comunicação científica. Além de constituir mais um passo na evolução dos estudos métricos da informação, a altmetria se apresenta também como reação à crise do atual modelo de publicação e avaliação na Ciência. A partir de pesquisa bibliográfica exploratória em fontes nacionais e internacionais, levantamos a produção científica sobre altmetria, identificando atores envolvidos na produção de conhecimento na área, seus conceitos, as propostas e tendências dos estudos sobre o tema; fundamentando a reflexão sobre o desenvolvimento da área e a aceitação das métricas alternativas como ferramentas da avaliação científica. Constatamos que a altmetria é uma área de estudos em expansão, cujos métodos complementam os estudos métricos tradicionais contribuindo para o entendimento mais completo da comunicação científica, seus atores, seus processos, seus produtos e seus impactos.
Describes the state of the art of altmetrics, defined as the study, creation and use of measures related to user interaction with diverse research products through the Social Web – views, downloads, citations, reuse, sharing, tagging, comments, among others. To understand the context where altmetrics arises, we explore the Social Web’s specificities and potentials, and the characteristics of scientific communication. Besides being another step on the evolution of metric studies of information, altmetrics also presents itself as a reaction to the crisis in the current model of scientific publication and evaluation. Through an exploratory search in national and international sources we were able to identify the scientific literature about altmetrics, analysing the authors involved, its concepts, the proposals and trends around the theme, basing our reflection about the development of altmetrics and the acceptance of alternative metrics as tools for scientific evaluation. We note that altmetrics is an expanding area, and its methods complement traditional metrics contributing to a more complete understanding of scientific communication, its actors, processes, products and impacts.
Thio, Niko. "Provider recommendation based on client-perceived performance." Connect to thesis, 2009. http://repository.unimelb.edu.au/10187/5773.
Full textIn this thesis we focus on provider recommendation based on one of the most important QoS attributes – performance. Specifically, we investigate client-perceived performance, which is the application-level performance measured at the client-side every time the client invokes the service. This performance metric has the advantage of accurately representing client experience, compared to the widely used server-side metrics in the current frameworks (e.g. Service Level Agreement or SLA in Web Services context). As a result, provider recommendation based on this metric will be favourable from the client’s point of view.
In this thesis we address two key research challenges related to provider recommendation based on client-perceived performance - performance assessment and performance prediction. We begin by identifying heterogeneity factors that affect client-perceived performance among clients in a global Internet environment. We then perform extensive real-world experiments to evaluate the significance of each factor to the client-perceived performance.
From our finding on heterogeneity factors, we then develop a performance estimation technique to address performance assessment for cases where direct measurements are unavailable. This technique is based on the generalization concept, i.e. estimating performance based on the measurement gathered by similar clients. A two-stage grouping scheme based on the heterogeneity factors we identified earlier is proposed to address the problem of determining client similarity. We then develop an estimation algorithm and validate it using synthetic data, as well as real world datasets.
With regard to performance prediction, we focus on the medium-term prediction aspect to address the needs of the emerging technology requirements: distinguishing providers based on medium-term (e.g. one to seven days) performance. Such applications are found when the providers require subscription from their clients to access the service. Another situation where the medium-term prediction is important is in temporal-aware selection: the providers need to be differentiated, based on the expected performance of a particular time interval (e.g. during business hours). We investigate the applicability of classical time series prediction methods: ARIMA and exponential smoothing, as well as their seasonal counterparts – seasonal ARIMA and Holt-Winters. Our results show that these existing models lack the ability to capture the important characteristics of client-perceived performance, thus producing poor medium-term prediction. We then develop a medium-term prediction method that is specifically designed to account for the key characteristics of a client-perceived performance series, and to show that our prediction methods produce higher accuracy for medium-term prediction compared to the existing methods.
In order to demonstrate the applicability of our solution in practice, we developed a provider recommendation framework based on client-perceived performance (named PROPPER), which utilizes our findings on performance assessment and prediction. We formulated the recommendation algorithm and evaluated it through a mirror selection case study. It is shown that our framework produces better outcomes in most cases, compared to country-based or geographic distance-based selection schemes, which are the current approach of mirror selection nowadays.
Walters, Jeromie L. "Online Evaluation System." University of Akron / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=akron1113514372.
Full textLehmann, Janette. "From site to inter-site user engagement : fundamentals and applications." Doctoral thesis, Universitat Pompeu Fabra, 2015. http://hdl.handle.net/10803/287327.
Full textThe aim of this thesis is to provide a deeper understanding of how users engage with websites and how to measure this engagement. We start with studying online behaviour metrics, which are commonly employed as a proxy for user engagement, and we propose new metrics that expose so far unconsidered aspects of user engagement. We then conduct several case studies that demonstrate how these metrics provide a deeper understanding of user engagement. Within each case study we also examine how the characteristics of a website influence user engagement. Some of our key findings include: (1) engagement differs between sites and these differences depend on the site itself; (2) users multitask within online sessions and this affects the interpretation of engagement metrics; (3) analysing engagement across sites enables a comprehensive look at user engagement, because this considers the relationships between sites; and (4) engagement depends on the quality of the content and the hyperlink structure of sites, but the interests of users can also drive it.
Anjos, Cláudia Regina dos. "Mídias sociais nas bibliotecas da UFRJ: adoção e monitoramento." Universidade Federal do Estado do Rio de Janeiro, 2016. http://hdl.handle.net/11422/1246.
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Este trabalho investigou o uso das mídias sociais em trinta e uma bibliotecas da Universidade Federal do Rio de Janeiro para compreender como utilizam estas ferramentas e tecer orientações para o bom uso das ferramentas de monitoramento no cenário biblioteconômico. O estudo baseou-se em técnicas de observação e de entrevistas para averiguar a percepção de bibliotecários e usuários na utilização das mídias no contexto das bibliotecas acadêmicas. Embora a importância da comunicação nesse canal seja reconhecida por ambos entrevistados, como meio de promover serviços e produtos, os resultados indicaram que as mídias sociais não são elementos dominantes do universo das bibliotecas acadêmicas. O estudo é acrescido de um Manual Básico de Uso de Mídias Sociais, direcionado aos profissionais da informação, onde são apresentadas sugestões para uso, monitoramento e medição do desempenho organizacional na comunicação em mídias sociais.
This study investigated the use of social media in thirty-one libraries of the Federal University of Rio de Janeiro to understand how to use these tools and weave guidelines for the proper use of monitoring tools in biblioteconômico scenario. The study was based on observation techniques and interviews to ascertain the perception of librarians and users in the use of media in the context of academic libraries. While the importance of communication channel that is recognized by both respondents as a means of promoting products and services, the results indicated that social media are not the dominant elements of the universe of academic libraries. The study is plus a Basic Guide to Using Social Media, directed to the professionals of the information, which are presented suggestions for use, monitoring and measurement of organizational performance communication in social media.
Dantas, Andr? Medeiros. "Avalia??o de reusabilidade de aplica??es web baseadas em frameworks orientados a a??es e a componentes: estudo de Caso sobre os Frameworks Apache Struts e JavaServer Faces." Universidade Federal do Rio Grande do Norte, 2008. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17975.
Full text?Over the years the use of application frameworks designed for the View and Controller layers of MVC architectural pattern adapted to web applications has become very popular. These frameworks are classified into Actions Oriented and Components Oriented , according to the solution strategy adopted by the tools. The choice of such strategy leads the system architecture design to acquire non-functional characteristics caused by the way the framework influences the developer to implement the system. The components reusability is one of those characteristics and plays a very important role for development activities such as system evolution and maintenance. The work of this dissertation consists to analyze of how the reusability could be influenced by the Web frameworks usage. To accomplish this, small academic management applications were developed using the latest versions of Apache Struts and JavaServer Faces frameworks, the main representatives of Java plataform Web frameworks of. For this assessment was used a software quality model that associates internal attributes, which can be measured objectively, to the characteristics in question. These attributes and metrics defined for the model were based on some work related discussed in the document
?O uso de frameworks para as camadas do Controlador e Vis?o do padr?o arquitetural MVC adaptado para aplica??es Web se tornou bastante popular ao longo dos anos. Eles s?o classificados em Orientados a A??es ou Orientados a Componentes , de acordo com a estrat?gia de solu??o adotada pelas ferramentas. A escolha por uma dessas estrat?gias faz com que o design da arquitetura do sistema adquira caracter?sticas n?o-funcionais ocasionadas pela forma com que o framework leva o desenvolvedor a implementar o sistema. A reusabilidade dos componentes ? uma dessas caracter?sticas. Ela possui um papel muito importante para atividades como evolu??o e manuten??o do sistema. O trabalho desta disserta??o consiste em analisar o quanto a reusabilidade pode ser impactada de acordo com a utiliza??o de um tipo de framework Web. Com esse intuito, foram realizados estudos de caso atrav?s da implementa??o de pequenas aplica??es de controle acad?mico se utilizando das mais recentes vers?es dos frameworks Apache Struts e JavaServer Faces, os principais representantes de frameworks Web da plataforma Java. Para essa avalia??o, foi utilizado um modelo de qualidade de software respons?vel por associar atributos internos, que podem ser medidos objetivamente, ? caracter?stica em quest?o. Esses atributos e m?tricas definidos para o modelo foram baseados em alguns trabalhos relacionados discutidos no documento
Attaallah, Abdulaziz Ahmad. "A Structural Metric Model to Predict the Complexity of Web Interfaces." Diss., North Dakota State University, 2017. http://hdl.handle.net/10365/25918.
Full textDrach, Marcos David. "Aplicabilidade de metricas por pontos de função em sistemas baseados em Web." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/276360.
Full textDissertação (mestrado profissional) - Universidade Estadual de Campinas, Instituto de Computação
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Resumo: Métricas de software são padrões quantitativos de medidas de vários aspectos de um projeto ou produto de software, e se constitui em uma poderosa ferramenta gerencial, contribuindo para a elaboração de estimativas de prazo e custo mais precisas e para o estabelecimento de metas plausíveis, facilitando assim o processo de tomada de decisões e a subsequente obtenção de medidas de produtividade e qualidade. A métrica de Análise por Pontos de Função - FPA, criada no final da década de 70 com o objetivo de medir o tamanho de software a partir de sua especificação funcional, foi considerada um avanço em relação ao método de contagem por Linhas de Código Fonte - SLOC, a única métrica de tamanho empregada na época. Embora vários autores tenham desde então publicado várias extensões e alternativas ao método original no sentido de adequá-lo a sistemas específicos, sua aplicabilidade em sistemas Web ainda carece de um exame mais crítico. Este trabalho tem por objetivo realizar uma análise das características computacionais específicas da plataforma Web que permita a desenvolvedores e gerentes de projeto avaliarem o grau de adequação da FPA a este tipo de ambiente e sua contribuição para extração de requisitos e estimativa de esforço
Abstract: Software metrics are quantitative standards of measurement for many aspects of a software project or product, consisting of a powerful management tool that contributes to more accurate delivery time and cost estimates and to the establishment of feasible goals, facilitating both the decision-making process itself and the subsequent obtention of data measuring productivity and quality. The metric Function Point Analysis - FPA, created at the end of 70¿s to measure software size in terms of its functional specification, was considered an advance over the Source Line Of Code - SLOC counting method, the only method available at that time. Although many authors have published various extensions and alternatives to the original method, in order to adapt it to specific systems, its applicability in Web-based systems still requires a deeper and more critical examination. This work aims to present an analysis of the specific computational characteristics of the Web platform that allows developers and project managers to evaluate the adequacy of the FPA method to this environment and its contribution to the requirement extraction and effort estimation
Mestrado
Engenharia de Computação
Mestre Profissional em Computação
Coraggio, Alessio <1987>. "L'impresa nel web: strategie e metriche di search engine optimization." Master's Degree Thesis, Università Ca' Foscari Venezia, 2013. http://hdl.handle.net/10579/2422.
Full textLaw, Marc Teva. "Distance metric learning for image and webpage comparison." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066019/document.
Full textThis thesis focuses on distance metric learning for image and webpage comparison. Distance metrics are used in many machine learning and computer vision contexts such as k-nearest neighbors classification, clustering, support vector machine, information/image retrieval, visualization etc. In this thesis, we focus on Mahalanobis-like distance metric learning where the learned model is parametered by a symmetric positive semidefinite matrix. It learns a linear tranformation such that the Euclidean distance in the induced projected space satisfies learning constraints.First, we propose a method based on comparison between relative distances that takes rich relations between data into account, and exploits similarities between quadruplets of examples. We apply this method on relative attributes and hierarchical image classification. Second, we propose a new regularization method that controls the rank of the learned matrix, limiting the number of independent parameters and overfitting. We show the interest of our method on synthetic and real-world recognition datasets. Eventually, we propose a novel Webpage change detection framework in a context of archiving. For this purpose, we use temporal distance relations between different versions of a same Webpage. The metric learned in a totally unsupervised way detects important regions and ignores unimportant content such as menus and advertisements. We show the interest of our method on different Websites
Côrte, Leandro. "Método para a avaliação de servidores WWW no ambiente corporativo." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2002. http://hdl.handle.net/10183/3375.
Full textNovosedlik, Andrea. "La traduzione della canzone d'autore tra l'italiano e il francese: le scelte, la metrica e il suono." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/11378/.
Full textBarlow, McKenzie Lee. "Comparative Analysis of Physiological Measurements and Environmental Metrics on Predicting Heat Stress Related Events." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1906.
Full textLondero, Eduardo Bauer. "Comportamento de Metricas de Inteligibilidade Textual em Documentos Recuperados naWeb." Universidade Catolica de Pelotas, 2011. http://tede.ucpel.edu.br:8080/jspui/handle/tede/220.
Full textText retrieved from the Internet through Google and Yahoo queries are evaluated using Flesch-Kincaid Grade Level, a simple assessment measure of text readability. This kind of metrics were created to help writers to evaluate their text, and recently in automatic text simplification for undercapable readers. In this work we apply these metrics to documents freely retrieved from the Internet, seeking to find correlations between legibility and relevance acknowledged to then by search engines. The initial premise guiding the comparison between readability and relevance is the statement known as Occam s Principle, or Principle of Economy. This study employs Flesch-Kincaid Grade Level in text documents retrieved from the Internet through search-engines queries and correlate it with the position. It was found a centralist trend in the texts recovered. The centralist tendency mean that the average spacing of groups of files from the average of the category they belong is meaningfull. With this measure is possible to establish a correlation between relevance and legibility, and also, to detect diferences in the way both search engines derive their relevance calculation. A subsequent experiment seeks to determine whether the measure of legibility can be employed to assist him or her choosing a document combined with original search engine ranking and if it is useful as advance information for choice and user navigation. In a final experiment, based on previously obtained knowledge, a comparison between Wikipedia and Britannica encyclopedias by employing the metric of understandability Flesch-Kincaid
Textos recuperados da Internet por interm´edio de consultas ao Google e Yahoo s ao analisados segundo uma m´etrica simples de avaliac¸ ao de inteligibilidade textual. Tais m´etricas foram criadas para orientar a produc¸ ao textual e recentemente tamb´em foram empregadas em simplificadores textuais autom´aticos experimentais para leitores inexperientes. Nesse trabalho aplicam-se essas m´etricas a texto originais livres, recuperados da Internet, para buscar correlacionar o grau de inteligibilidade textual com a relev ancia que lhes ´e conferida pelos buscadores utilizados. A premissa inicial a estimular a comparac¸ ao entre inteligibilidade e relev ancia ´e o enunciado conhecido como Princ´ıpio de Occam, ou princ´ıpio da economia. Observa-se uma tend encia centralista que ocorre a partir do pequeno afastamento m´edio dos grupos de arquivos melhor colocados no ranking em relac¸ ao `a m´edia da categoria a que pertencem. ´E com a medida do afastamento m´edio que se consegue verificar correlac¸ ao com a posic¸ ao do arquivo no ranking e ´e tamb´em com essa medida que se consegue registrar diferenc¸as entre o m´etodo de calcular a relev ancia do Google e do Yahoo. Um experimento que decorre do primeiro estudo procura determinar se a medida de inteligibilidade pode ser empregada para auxiliar o usu´ario da Internet a escolher arquivos mais simples ou se a sua indicac¸ ao junto `a listagem de links recuperados ´e ´util e informativa para a escolha e navegac¸ ao do usu´ario. Em um experimento final, embasado no conhecimento previamente obtido, s ao comparadas as enciclop´edias Brit anica eWikip´edia por meio do emprego da m´etrica de inteligibilidade Flesch-Kincaid Grade Level
D’Souza, Jayesh. "Measuring Effectiveness in International Financial Crime Prevention: Can We Agree on a Performance Metric?" FIU Digital Commons, 2008. http://digitalcommons.fiu.edu/etd/286.
Full textSilva, Otto Julio Ahlert Pinno da. "Detecção de anomalias em aplicações Web utilizando filtros baseados em coeficiente de correlação parcial." Universidade Federal de Goiás, 2014. http://repositorio.bc.ufg.br/tede/handle/tede/4268.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
Finding faults or causes of performance problems in modernWeb computer systems is an arduous task that involves many hours of system metrics monitoring and log analysis. In order to aid administrators in this task, many anomaly detection mechanisms have been proposed to analyze the behavior of the system by collecting a large volume of statistical information showing the condition and performance of the computer system. One of the approaches adopted by these mechanism is the monitoring through strong correlations found in the system. In this approach, the collection of large amounts of data generate drawbacks associated with communication, storage and specially with the processing of information collected. Nevertheless, few mechanisms for detecting anomalies have a strategy for the selection of statistical information to be collected, i.e., for the selection of monitored metrics. This paper presents three metrics selection filters for mechanisms of anomaly detection based on monitoring of correlations. These filters were based on the concept of partial correlation technique which is capable of providing information not observable by common correlations methods. The validation of these filters was performed on a scenario of Web application, and, to simulate this environment, we use the TPC-W, a Web transactions Benchmark of type E-commerce. The results from our evaluation shows that one of our filters allowed the construction of a monitoring network with 8% fewer metrics that state-of-the-art filters, and achieve fault coverage up to 10% more efficient.
Encontrar falhas ou causas de problemas de desempenho em sistemas computacionais Web atuais é uma tarefa árdua que envolve muitas horas de análise de logs e métricas de sistemas. Para ajudar administradores nessa tarefa, diversos mecanismos de detecção de anomalia foram propostos visando analisar o comportamento do sistema mediante a coleta de um grande volume de informações estatísticas que demonstram o estado e o desempenho do sistema computacional. Uma das abordagens adotadas por esses mecanismo é o monitoramento por meio de correlações fortes identificadas no sistema. Nessa abordagem, a coleta desse grande número de dados gera inconvenientes associados à comunicação, armazenamento e, especialmente, com o processamento das informações coletadas. Apesar disso, poucos mecanismos de detecção de anomalias possuem uma estratégia para a seleção das informações estatísticas a serem coletadas, ou seja, para a seleção das métricas monitoradas. Este trabalho apresenta três filtros de seleção de métricas para mecanismos de detecção de anomalias baseados no monitoramento de correlações. Esses filtros foram baseados no conceito de correlação parcial, técnica que é capaz de fornecer informações não observáveis por métodos de correlações comuns. A validação desses filtros foi realizada sobre um cenário de aplicação Web, sendo que, para simular esse ambiente, nós utilizamos o TPC-W, um Benchmark de transações Web do tipo E-commerce. Os resultados obtidos em nossa avaliação mostram que um de nossos filtros permitiu a construção de uma rede de monitoramento com 8% menos métricas que filtros estado-da-arte, além de alcançar uma cobertura de falhas até 10% mais eficiente.
Novák, Michal. "Komplexní marketingová strategie v online prostředí." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2011. http://www.nusl.cz/ntk/nusl-223301.
Full textCadiou, Corentin. "L’impact des grandes structures de l’Univers sur la formation des halos de matière noire et des galaxies How does the cosmic web impact assembly bias? Accurate tracer particles of baryon dynamics in the adaptive mesh refinement code Ramses Galaxy evolution in the metric of the cosmic web Galaxies flowing in the oriented saddle frame of the cosmic web." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS508.
Full textThe anisotropic large-scale distribution of matter is made of an extended network of voids delimited by sheets, with filaments at their intersection which together form the cosmic web. Matter that will later form dark matter halos and their galaxies flows towards compact nodes at filaments' intersections and in the process, retains the imprint of the cosmic web. In this thesis, I develop a conditional version of the excursion set theory which, using a model of a large-scale filament, enables me to show that anisotropic environment have an impact on the formation history of dark matter halos. The cosmic web then has a role in the formation of halos and their galaxies. I then build a model that is able to capture the evolution of the cosmic web (halo mergers, but also filament and wall mergers) that can be used to better constrain galaxy formation models. The model predicts that an excess of anisotropic accretion is expected in filaments compared to nodes, so that the formation history of galaxies is biased. The effect of anisotropic accretion on galaxy formation is then studied using hydrodynamical simulations and a novel numerical method tailored to accurately follow the accretion history of the gas. I show that the angular momentum is transported efficiently from the cosmic web down to the inner halo, where gravitational torques redistribute it to the disk and the inner halo
Wallace, Hailey. "Are We Providing Preferred Floral Resources for Bees in Our Neighborhoods?: Assessing the Relationship Between Small Scale Vegetation Metrics and Bee Presence in SE Portland." PDXScholar, 2019. https://pdxscholar.library.pdx.edu/open_access_etds/5126.
Full textSebastianutti, Marco. "Geodesic motion and Raychaudhuri equations." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18755/.
Full text