Consistency Maintenance of Plausible Belief Bases Based on Agents Credibility

LUCIANO H. TAMARGO; ALEJANDRO J. GARCÍA; MARCELO A. FALAPPA; GUILLERMO R. SIMARI

Sydney, Australia

Workshop; Twelfth International Workshop on Non-Monotonic Reasoning, NMR’2008; 2008

Principles of Knowledge Representation and Reasoning Inc

In this work we address the problem of knowledge representation in a collaborative multi-agent system where agents can obtain new information from others through communication. Informant agents will be ranked by their credibility. This credibility order will be used when new incoming information is contradictory with the current agent’s belief base. We propose a method for analyzing  the received information, if inconsistency arises, the credibility order will be used to decide which information prevails. The proposed operator satisfies the minimal change principle and incoming information can be rejected when the agent has more credible beliefs that contradict the new information.