An abstract argumentation framework with proper and blocking defeaters

Defeat between arguments is a combination of two basic elements: a conflict relation and a preference order. We present a framework for argumentation where two kinds of defeat relation are present, depending on the outcome of a preference function. An argument A is a proper defeater of B, if both ar...

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Autores principales: Martínez, Diego C., García, Alejandro Javier, Simari, Guillermo Ricardo
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2004
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/22504
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Sumario:Defeat between arguments is a combination of two basic elements: a conflict relation and a preference order. We present a framework for argumentation where two kinds of defeat relation are present, depending on the outcome of a preference function. An argument A is a proper defeater of B, if both arguments are in conflict, and A is preferred to B according to. A is a blocking defeater of B, if they are in conflict and both arguments are incomparable or indistinguishable. We define a function to caracterize the set of accepted argument in the framework. This function also provide a method for identifying controversial situations.