dc.contributorGuardia, Hélio Crestana
dc.contributorhttp://lattes.cnpq.br/1780902767520967
dc.contributorhttp://lattes.cnpq.br/0945118062348054
dc.creatorMolina, Fernando Henrique Ferrarezi
dc.date.accessioned2016-10-10T17:28:10Z
dc.date.available2016-10-10T17:28:10Z
dc.date.created2016-10-10T17:28:10Z
dc.date.issued2016-03-03
dc.identifierMOLINA, Fernando Henrique Ferrarezi. Um sistema de reputação para interação baseada em serviços. 2016. Dissertação (Mestrado em Ciência da Computação) – Universidade Federal de São Carlos, São Carlos, 2016. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7744.
dc.identifierhttps://repositorio.ufscar.br/handle/ufscar/7744
dc.description.abstractService-based communication is becoming increasingly relevant, as seen in the Internet of Things scenarios. Choosing an adequate service however can be a difficult task, as this form of communication may involve sensible resources and data. A trustworthy, safe, and privacy preserving mechanism is desirable for service selection. Reputation systems can help in this selection. This thesis presents a reputation system for service selection based on the security and privacy mechanisms of crypto-coins. In order to evaluate the performance of the proposed mechanism in the identification of low quality service providers we also investigated the use of different formulations used to determine a reputation based on peer voting. Results from simulation show the proposed system architecture is viable and supports large adoption via a scalable infrastructure. The performance analysis of different formulations for the calculus of reputations also shows that the recent behavior of an entity is the most impacting factor in establishing its reputation.
dc.languagepor
dc.publisherUniversidade Federal de São Carlos
dc.publisherUFSCar
dc.publisherPrograma de Pós-Graduação em Ciência da Computação - PPGCC
dc.publisherCâmpus São Carlos
dc.rightsAcesso aberto
dc.subjectD2D
dc.subjectInternet das coisas
dc.subjectSistemas de reputação
dc.subjectComunicação baseada em serviços
dc.subjectP2P
dc.subjectInternet of things
dc.subjectReputation system
dc.subjectService-based communication
dc.titleUm sistema de reputação para interação baseada em serviços
dc.typeTesis


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