A theory of diagnosis from first principles
Artificial Intelligence
Diagnosis of single and multi-agent plans
Proceedings of the fourth international joint conference on Autonomous agents and multiagent systems
CEEMAS'05 Proceedings of the 4th international Central and Eastern European conference on Multi-Agent Systems and Applications
Diagnosis of multi-agent plan execution
MATES'06 Proceedings of the 4th German conference on Multiagent System Technologies
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Failures in plan execution can be attributed to errors in the execution of plan steps or violations of the plan structure. While in previous work we have concentrated on the first type of failures, in this paper we introduce the idea of diagnosing violations in the plan structure. The structure of a plan prescribes which actions have to be performed and which precedence constraints between them have to be respected. Especially in multiagent environments violations of plan structure might easily occur as the consequence of synchronization errors. Using a formal framework for plan diagnosis, we show how Model-Based Diagnosis can applied to identify these violations of plan structure specifications and we analyze the computational complexity of the associated diagnostic problems.