An Abstract Argumentation Framework with Varied-strength Attacks

Diego C Martinez, Alejandro J. Garcia, Guillermo R. Simari

In classical abstract argumentation, arguments interact with each other through a single abstract notion of attack.However, several concrete forms of argument conflict are present in the literature, all of them of different nature and strength for a particular context.In this work we define an argumentation framework equipped with a set of abstract attack relations of varied strength. Using this framework, semantic notions dealing with the relative difference of strength are introduced. The focus is put on argument defense, and the study of admissible sets according to the quality of defenders.

Subjects: 3.3 Nonmonotonic Reasoning; 11. Knowledge Representation

Submitted: Jun 16, 2008

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