Enrico Oliva, Peter McBurney, Andrea Omicini

In a social context, people have a partial knowledge about the world and use arguments in order to solve problems, to reduce conflicts, or to exchange information. Argumentation is a dialogic process, and could occur through direct interaction, or through supports of some sorts—like blackboards, or electronic fora. The same holds for intelligent agents in MAS (multi-agent system), where however it is not clear what could work as an actual support for argumentation between agents, external to agents themselves. To this end, this work exploits the A&A (agents and artifacts) meta-model for MAS, exploring the use of artifacts for agent argumentation within a MAS. Along this line, the first aim of this work is to design an argumentation component based on Dung's preferred semantics, combining it with artifact abstraction in order to realise a social support for argumentation in MAS. Using argumentation within the A&A meta-model, we introduce here the notion of Co-Argumentation Artifact (CAA) as an artifact specialised in managing arguments and providing a coordination service for argumentation process in a MAS. In order to give concreteness to our proposal, we also discuss a first CAA deployment based on logic programming and tuple centres exploiting the TuCSoN infrastructure.

4th International Workshop “Argumentation in Multi-Agent Systems” (ArgMAS 2007), pages 115-130, 15 May 2007.
Simon Parsons, Iyad Rahwan, Chris Reed (eds.), AAMAS 2007, Honolulu, Hawai'i, USA
Address = {AAMAS 2007, Honolulu, Hawai'i, USA},
Author = {Oliva, Enrico and McBurney, Peter and Omicini, Andrea},
Booktitle = {4th International Workshop ``Argumentation in Multi-Agent Systems'' (ArgMAS 2007)},
Editor = {Parsons, Simon and Rahwan, Iyad and Reed, Chris},
Month = {15~} # may,
Pages = {115--130},
Title = {Co-Argumentation Artifact for Agent Societies},
Year = 2007}



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