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Master's Dissertation
DOI
10.11606/D.3.2005.tde-22052006-221632
Document
Author
Full name
Sara Jane Casare
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2005
Supervisor
Committee
Sichman, Jaime Simao (President)
Gomi, Edson Satoshi
Wassermann, Renata
Title in Portuguese
Uma ontologia funcional de reputação para agentes.
Keywords in Portuguese
interoperabilidade
ontologia
reputação
sistema multiagente
Abstract in Portuguese
Esta dissertação propõe uma Ontologia Funcional de Reputação para agentes. Tal ontologia representa uma parte do conhecimento científico sobre reputação provido tanto pelas Ciências Humanas quanto pelos trabalhos em Inteligência Artificial. Seu objetivo é oferecer uma perspectiva funcional para a representação e análise da reputação como mecanismo de controle social em sociedades de agentes, de forma a sustentar a implementação de modelos de reputação para agentes. A Ontologia Funcional de Reputação foi construída a partir das categorias de conhecimento da Ontologia Funcional do Direito, proposta por Valente (1995), e utiliza a categorização de conceitos definida para o mundo jurídico para a representação do mundo social. A ontologia foi codificada em OWL DL, uma linguagem formal baseada em lógica descritiva. Uma vez construída a ontologia, os conceitos utilizados por diversos modelos e sistemas de reputação foram utilizados na sua avaliação. A utilização de um motor de inferência permitiu comparar estes conceitos, representados por meio de classes OWL, com as classes da ontologia. Tal comparação permite avaliar, de modo preliminar, a adequação do uso da Ontologia Funcional de Reputação como uma possível interlingua entre diversos agentes heterogêneos, cada qual utilizando um modelo de reputação diferente, que necessitam interoperar.
Title in English
A functional ontology of reputation for agents.
Keywords in English
interoperability
multi-agent system
ontology
reputation
Abstract in English
This work presents a Functional Ontology of Reputation for agents. This ontology represents the broad knowledge about reputation produced in some areas of interest such as Social Sciences and Artificial Intelligence. Its goal is to provide a functional perspective both to represent and analyze reputation as a social control mechanism for agent’s societies, in order to support the implementation of reputation model for agents. The Functional Ontology of Reputation employs the primitive categories of knowledge used in the Functional Ontology of Law proposed by Valente (1995). The idea is that the concepts of the legal world can be used to model the social world, through the extension of the concept of legal rule to social norm and the internalization of social control mechanisms in the agent's mind, so far externalized in legal institutions. The Functional Ontology of Reputation contains five main categories that have been borrowed from or inspired by the Functional Ontology of Law: Reputative Knowledge, Responsibility Knowledge, Normative Knowledge, World Knowledge and Common Sense Knowledge.As in the Functional Ontology of Law, the distinction among the categories of the reputation ontology are accomplished according to a functional perspective, in which each component of the reputation system, embedded in the social system, exists to perform a specific function in the effort to achieve social objectives, such as trust, reciprocity and social cooperation. The Functional Ontology of Reputation was implemented in OWL, a description logic language. This ontology was evaluated by using several concepts related to reputation, included in different reputation models and reputation systems. These concepts were defined as OWL classes and a reasoner was used in order to produce the comparison between these concepts and the ontology classes. This comparison allows evaluating, in a preliminary way, the Functional Ontology of Reputation utilization as a possible interlingua between several heterogeneous agents that need to interoperate, despite the utilization of different reputation model.
 
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This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2006-05-23
 
WARNING: The material described below relates to works resulting from this thesis or dissertation. The contents of these works are the author's responsibility.
  • CASARE, Sara, and SICHMAN, Jaime Simão. Using a Functional Ontology Of Reputation to interoperate different agent reputation models [doi:10.1007/BF03192377]. Journal of the Brazilian Computer Society [online], 2005, vol. 11, n. 2, p. 79-94.
  • BRANDãO, Anarosa A. F., et al. Exchanging reputation values among heterogeneous agent reputation models : an experience on ART testbed [doi:10.1145/1329125.1329405]. In Proceedings of the 6th international joint conference on Autonomous agents and multiagent systems - AAMAS '07 [online], 6, Honolulu, Hawaii, 2007. New York, New York, USA : ACM Press, 2007. p. 1. ISBN 9788190426275.
  • CASARE, Sara, and SICHMAN, Jaime. Towards a functional ontology of reputation [doi:10.1145/1082473.1082550]. In Proceedings of the fourth international joint conference on Autonomous agents and multiagent systems - AAMAS '05 [online], 4, The Netherlands, 2005. New York, New York, USA : ACM Press, 2005. p. 505. ISBN 1595930930.
  • VERCOUTER, Laurent, et al. An experience on reputation models interoperability based on a functional ontology. In Iberoamerican Workshop on Multi-Agent Systems (IBERAGENTS), 6, Ribeirão Preto, 2006.
  • VERCOUTER, Laurent, et al. An experience on reputation models interoperability based on a functional ontology. In International Joint Conference on Artifical Intelligence (IJCAI), 20, Hyderabad, 2007.
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