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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Granularidade da informa??o em sistemas hiperm?dia adapt?veis / Information granularity in adaptive hypermedia systems

Angelo, F?bio Nunes 31 May 2007 (has links)
Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2018-08-15T11:11:40Z No. of bitstreams: 1 Fabio Nunes Angelo.pdf: 3745845 bytes, checksum: c448700fa075a4f93f9dc10fb0233246 (MD5) / Made available in DSpace on 2018-08-15T11:11:40Z (GMT). No. of bitstreams: 1 Fabio Nunes Angelo.pdf: 3745845 bytes, checksum: c448700fa075a4f93f9dc10fb0233246 (MD5) Previous issue date: 2007-05-31 / Centro de Pesquisa e Desenvolvimento em Telecomunica??es (CPqD) / The subject of this thesis is an analysis on the effect of information granularity in adaptive hypermedia systems upon the response time in the interaction with the user. First the concept of adaptive hypermedia is brought into consideration, followed by the concept of information granularity itself. These concepts are then related to adaptive hypermedia system in order to measure the possible performance problems that can rise when information granularity is modified. Next, a methodology for performance assessment of computer systems is presented. This methodology is adapted and used to study the impact of refining information granularity upon the performance of an adaptive hypermedia system. Information is presented on the mean response time data that was collected and modeled in the form of mathematical equations, where the amount of adaptive application objects are related to average response time. An specific estimation tool was developed using these equations. The issue on performance versus optimal size for information granularity in adaptive hypermedia systems is discussed and.the conclusion suggests new directions for future work. / O assunto desta disserta??o ? uma an?lise sobre o impacto da varia??o da granularidade da informa??o em sistemas hiperm?dia adapt?veis em cima do tempo de resposta na intera??o com o usu?rio. Discute-se primeiramente o conceito de hiperm?dia adapt?vel, seguido pelo conceito de granularidade da informa??o. Estes conceitos s?o, ent?o, relacionados ao problema de desempenho de uma aplica??o hiperm?dia adapt?vel, quando ocorre mudan?a na granularidade da informa??o. Em seguida, apresenta-se uma metodologia para avalia??o de desempenho de sistemas computacionais. Atrav?s de algumas adapta??es, a mesma ? aplicada para estudar o impacto do refinamento da granularidade da informa??o no desempenho de um determinado sistema hiperm?dia adapt?vel. Apresentam-se os dados sobre tempo m?dio de resposta e modelam-se os mesmos em equa??es, nas quais relaciona-se a quantidade de objetos da aplica??o adapt?vel com o tempo m?dio de resposta. Uma ferramenta de estimativa desenvolvida a partir dessas equa??es ? apresentada. Discute-se at? que ponto a informa??o deve ser refinada nos sistemas hiperm?dia adapt?veis sem que seu desempenho seja afetado e conclui-se sugerindo uma linha de trabalhos futuros.

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