Extended abstract frameworks separates conflicts and preference be- tween arguments. These elements are combined to induce argument defeat rela- tions. A proper defeat is consequence of preferring an argument in a conflicting pair, while blocking defeat i

EDGARDO FERRETTI; MARCELO ERRECALDE; ALEJANDRO J. GARCÍA; GUILLERMO R. SIMARI

Conferencia; Computational Models of Arguments; 2008

 In this paper we present a model for defeasible decision making thatcombines decision rules and arguments. In this decision framework we can changethe agent?s decision policy in a flexible way, with minor changes in the criteriathat influence the agent?s preferences and the comparison of arguments. Our ap-proach includes a simple methodology for developing the decision components ofthe agent. A decision framework designed with this methodology exhibits someinteresting properties. If the agent (decision maker) has available all the relevantknowledge about its preferences among the different alternatives that could be con-ceivably posed to it, then our proposal implements a rational preference relation.In opposition, if the agent has partial knowledge about its preferences, the deci-sions made by the agent still exhibits a behavior consistent with the weak axiomof revealed preference of the choice-based approach, a more flexible approach toIndividual Decision Making than the preference-based approach. The principlesstated in this work are exemplified in a robotic domain, where a robot should makedecisions about which box must be transported next.