TITLE:
A Dialogue System for Coherent Reasoning with Inconsistent Knowledge Bases
AUTHORS:
Silvio do Lago Pereira, Luiz Felipe Zarco dos Santos, Lucio Nunes de Lira
KEYWORDS:
Defeasible Reasoning, Inconsistent Knowledge, Precedence Relation, Dialogue System
JOURNAL NAME:
Journal of Computer and Communications,
Vol.3 No.8,
August
12,
2015
ABSTRACT: Traditionally, the AI community assumes
that a knowledge base must be consistent. Despite that, there are many
applications where, due to the existence of rules with exceptions, inconsistent
knowledge must be considered. One way of restoring consistency is to withdraw
conflicting rules; however, this will destroy part of the knowledge. Indeed, a
better alternative would be to give precedence to exceptions. This paper
proposes a dialogue system for coherent reasoning with inconsistent knowledge,
which resolves conflicts by using precedence relations of three kinds: explicit
precedence relation, which is synthesized from precedence rules; implicit
precedence relation, which is synthesized from defeasible rules; mixed
precedence relation, which is synthesized by combining explicit and implicit
precedence relations.