AAMAS '06 Proceedings of the fifth international joint conference on Autonomous agents and multiagent systems
The Roles of Roles in Agent Communication Languages
IAT '06 Proceedings of the IEEE/WIC/ACM international conference on Intelligent Agent Technology
Applied Ontology - Formal Ontologies for Communicating Agents
ACL Semantics Between Social Commitments and Mental Attitudes
Agent Communication II
Commitment-Based Policies in Persuasion Dialogues with Defeasible Beliefs
Agent Communication II
Interaction in Normative Multi-Agent Systems
Electronic Notes in Theoretical Computer Science (ENTCS)
Applied Ontology - Formal Ontologies for Communicating Agents
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There are two main traditions in defining a semantics for agent communication languages, based either on mental attitudes or on social commitments. In this paper we show how the role metaphor can be used to bridge the gap between these two approaches. First, we show how dialogues can be modelled as games - a form of normative systems - and how mental attitudes can be attributed not only to agents, but also, in a public manner, to the roles of the game. The dialogue moves allow an agent playing a role to modify the rolesý mental states, as specified by the counts-as conditionals (also known as constitutive norms) defining the game. The player of a role is expected to act as if it has the mental attitudes attributed to its role during the dialogue and to prevent its roleýs mental attitudes from becoming incoherent, as it does for its own private mental attitudes. Secondly, we show how roles as descriptions of expected behavior maintain the normative character of social semantics. Due to the bridge between the two approaches, results and tools from one approach can be used in the other one.