On generating all maximal independent sets
Information Processing Letters
Coherence in finite argument systems
Artificial Intelligence
Argumentation based decision making for autonomous agents
AAMAS '03 Proceedings of the second international joint conference on Autonomous agents and multiagent systems
Argumentation in artificial intelligence
Artificial Intelligence
Computational properties of argument systems satisfying graph-theoretic constraints
Artificial Intelligence
A unified and general framework for argumentation-based negotiation
Proceedings of the 6th international joint conference on Autonomous agents and multiagent systems
Explaining qualitative decision under uncertainty by argumentation
AAAI'06 Proceedings of the 21st national conference on Artificial intelligence - Volume 1
On the acceptability of arguments in preference-based argumentation
UAI'98 Proceedings of the Fourteenth conference on Uncertainty in artificial intelligence
Argumentation Context Systems: A Framework for Abstract Group Argumentation
LPNMR '09 Proceedings of the 10th International Conference on Logic Programming and Nonmonotonic Reasoning
Extending Argumentation to Make Good Decisions
ADT '09 Proceedings of the 1st International Conference on Algorithmic Decision Theory
A general framework for explaining the results of a multi-attribute preference model
Artificial Intelligence
Dominant decisions by argumentation agents
ArgMAS'09 Proceedings of the 6th international conference on Argumentation in Multi-Agent Systems
ABA: argumentation based agents
ArgMAS'11 Proceedings of the 8th international conference on Argumentation in Multi-Agent Systems
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During the last years, argumentation has been gaining increasing interest in modeling different reasoning tasks of an agent. Many recent works have acknowledged the importance of incorporating preferences or priorities in argumentation. However, relatively little is known about the theoretical and computational implications of preferences in argumentation. In this paper we introduce and study an abstract preference-based argumentation framework that extends Dung's formalism by imposing a preference relation over the arguments. Under some reasonable assumptions about the preference relation, we show that the new framework enjoys desirable properties, such as coherence. We also present theoretical results that shed some light on the role that preferences play in argumentation. Moreover, we show that although some reasoning problems are intractable in the new framework, it appears that the preference relation has a positive impact on the complexity of reasoning.