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DYNA
versión impresa ISSN 0012-7353versión On-line ISSN 2346-2183
Resumen
MONTE-ALTO, Helio Henrique Lopes Costa; POSSEBOM, Ayslan Trevizan; MORVELI-ESPINOZA, Miriam Mariela Mercedes y TACLA, Cesar Augusto. A rule-based argumentation framework for distributed contextual reasoning in dynamic environments. Dyna rev.fac.nac.minas [online]. 2021, vol.88, n.217, pp.120-130. Epub 16-Nov-2021. ISSN 0012-7353. https://doi.org/10.15446/dyna.v88n217.90858.
In this study, we tackled the problem of distributed reasoning in environments in which agents may have incomplete and inconsistent knowledge. Conflicts between agents are resolved through defeasible argumentation-based semantics with a preference function. Support for dynamic environments, where agents constantly enter and leave the system, was achieved by means of rules whose premises can be held by arbitrary agents. Moreover, we presented a formalism that enables agents to share information about their current situation or focus when issuing queries to other agents. This is necessary in environments where agents have a partial view of the world and must be able to cooperate with one another to reach conclusions. Hence, we presented the formalization of a multi-agent system and the argument construction and semantics that define its reasoning approach. Using example scenarios, we demonstrated that our system enables the modeling of a broader range of scenarios than related work.
Palabras clave : multi-agent systems; distributed reasoning; formal argumentation; structured argumentation framework.