Doutorado em Engenharia Elétrica

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http://repositorio.ufes.br/handle/10/17618

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Navegando Doutorado em Engenharia Elétrica por Assunto "Agentes inteligentes (Software)"

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    AProSiMA - ambiente de resolução cooperativa de problemas baseado em simulação multiagente
    (Universidade Federal do Espírito Santo, 2007-12-21) Azevedo, Lívia Lopes; Menezes, Crediné Silva de; Cury, Davidson; Boeres, Maria Claudia Silva; Tavares, Orivaldo de Lira; Castro Junior, Alberto Nogueira de
    The complex systems studies has caught researchers ́ attention in several knowledge areas lately, because of increasing interest in the way of systems ́ organization. Examples of complex systems are presented in a variety of situation which we live and they have been largely studied through model of multiagent simulation. However, there is a gap between environments for complex systems studies and their users. This thesis shows a proposal to an environment named AProSiMA, which allows no experts users in program planning, build up their own model of multiagent simulation. The environment still presents like a general proposal to propose a process of cooperative problem solving. By the way it ́s available to the users: acess to information recover and mechanisms to locate experts who may be geographically distributed and invite them to work in a cooperative system looking for a solution to the problem, shared place to discuss and formalize the problems ́ resolution strategies; mechanisms to direct questions and answers to the experts, cooperated groups formation and communication mechanisms which may support up the cooperative work.
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    Uma abordagem baseada em negociação de agentes para a resolução do problema de alocação dinâmica de navios em berços de terminais portuários
    (Universidade Federal do Espírito Santo, 2006-06-01) Rosa, Rodrigo de Alvarenga; Schneebeli, Hans Jorg Andreas; Sichman, Jaime Simão; Alvarenga, Arlindo Gomes de; Varejão, Flávio Miguel; Bortolon, Saulo
    This work shows a new approach to solve dynamic and complex logistics problems based upon the fact that in human society several problems are solved by interaction and negotiation between humans, that alone can't solve the problem, but if they join themselves toward the solution of the problem, all of them with their own resources and capabilities, they can reach one solution. It is proposed and defined one methodology inspired by the human society way of solving problems using several negotiation protocols. It was also proposed a negotiation protocol inspired in human emotion gratitude that has the main goal to solve the conflicts that might occur. Based on this proposed methodology, it was developed a computational system to create a virtual society of agents that have their own resources, non shareable, and by the exchange of messages between the agents, they converge to schedule all the solicitations of operations received (ship to load or unload container). This system was developed based on the agent technology and multiagent system. The proposed methodology and the implemented system were applied to a practical and real application of a Maritime Container Terminal. Several tests were done and the results was shown and analyzed for each negotiation protocol.