A Probabilistic Framework for Automatic and Dependable Adaptation in Dynamic Environments

Detalhes bibliográficos
Autor(a) principal: Dixit, Mônica
Data de Publicação: 2009
Outros Autores: Casimiro, António, Verissimo, Paulo, Lollini, Paolo, Bondavalli, Andrea
Tipo de documento: Relatório
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10451/14263
Resumo: Reviewed by Miguel P. Correia
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spelling A Probabilistic Framework for Automatic and Dependable Adaptation in Dynamic Environmentsdependabilityadaptationprobabilistic analysisquality of serviceReviewed by Miguel P. CorreiaDistributed protocols executing in uncertain environments, like the Internet, had better adapt dynamically to environment changes in order to preserve QoS. In earlier work, it was shown that QoS adaptation should be dependable, if correctness of protocol properties is to be maintained. More recently, some ideas concerning specific strategies and methodologies for improving QoS adaptation have been proposed. In this paper we describe a complete framework for dependable QoS adaptation. We assume that during its life-time, a system alternates periods where its temporal behavior is well characterized, with transition periods during which a variation of the environment conditions occurs. Our method is based on the following: if the environment is generically characterized in analytical terms, and we can detect the alternation of these stable and transient phases, we can improve the effectiveness and dependability of QoS adaptation. To prove our point we provide detailed evaluation results of the proposed solutions. Our evaluation is based on synthetic data flows generated from probabilistic distributions, as well as on real data traces collected in various Internet-based environments. Our results show that the proposed strategies can indeed be effective, allowing protocols to adapt to the available QoS in a dependable way.EC project IST-FP6-STREP-26979 (HIDENETS), and FCT, through the Multiannual and CMU-Portugal programmes.Repositório da Universidade de LisboaDixit, MônicaCasimiro, AntónioVerissimo, PauloLollini, PaoloBondavalli, Andrea2009-12-15T13:45:05Z2009-12-15T13:45:05Z2009-12-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/reportapplication/pdfhttp://hdl.handle.net/10451/14263enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-14T15:08:58ZPortal AgregadorONG
dc.title.none.fl_str_mv A Probabilistic Framework for Automatic and Dependable Adaptation in Dynamic Environments
title A Probabilistic Framework for Automatic and Dependable Adaptation in Dynamic Environments
spellingShingle A Probabilistic Framework for Automatic and Dependable Adaptation in Dynamic Environments
Dixit, Mônica
dependability
adaptation
probabilistic analysis
quality of service
title_short A Probabilistic Framework for Automatic and Dependable Adaptation in Dynamic Environments
title_full A Probabilistic Framework for Automatic and Dependable Adaptation in Dynamic Environments
title_fullStr A Probabilistic Framework for Automatic and Dependable Adaptation in Dynamic Environments
title_full_unstemmed A Probabilistic Framework for Automatic and Dependable Adaptation in Dynamic Environments
title_sort A Probabilistic Framework for Automatic and Dependable Adaptation in Dynamic Environments
author Dixit, Mônica
author_facet Dixit, Mônica
Casimiro, António
Verissimo, Paulo
Lollini, Paolo
Bondavalli, Andrea
author_role author
author2 Casimiro, António
Verissimo, Paulo
Lollini, Paolo
Bondavalli, Andrea
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Dixit, Mônica
Casimiro, António
Verissimo, Paulo
Lollini, Paolo
Bondavalli, Andrea
dc.subject.por.fl_str_mv dependability
adaptation
probabilistic analysis
quality of service
topic dependability
adaptation
probabilistic analysis
quality of service
description Reviewed by Miguel P. Correia
publishDate 2009
dc.date.none.fl_str_mv 2009-12-15T13:45:05Z
2009-12-15T13:45:05Z
2009-12-15
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/report
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10451/14263
url http://hdl.handle.net/10451/14263
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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