Social Welfare Semantics for Value-Based Argumentation Framework

摘要

Logically intuitive properties of argument acceptance criteria have been paid great attention in the argumentation frameworks, however, which do not take into account the agents. Recently research has begun on evaluating argument acceptance criteria considering preferences of audiences, a kind of representative agents. In this paper we take a step towards applying social choice theory into value-based argumentation framework (VAF), and propose social welfare semantics, an extension of Dung’s semantics incorporating social preference. Then the social welfare semantics and its relationship with the semantics of VAF are analyzed, and some non-trivial properties are proved based on Pareto efficiency.