A Belief Revision Approach to Inconsistency Handling in Multi-Agent Systems

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

Pasadena, California

Workshop; Workshop on Nonmonotonic Reasoning, Action and Change (NRAC 2009); 2009

In this paper, two methods that follow different attitudes when facing inconsistent knowledge will be analyzed. One is to use a revision operator over the knowledge base in order to preserve its consistency, the other is to cope with inconsistency. For the first case we will present a formalism for knowledge representation and consistency maintenance in a multi-agent system where deliberative agents can receive new information from others through communication. For the latter, an argumentative consequence in layered knowledge bases will be presented. Furthermore, we will compare these methods and we will show that they have several differences. However, we will show that they are equivalent under certain restrictions.