Towards model-based diagnosis of coordination failures

  • Authors:
  • Meir Kalech;Gal A. Kaminka

  • Affiliations:
  • The MAVERICK Group, Computer Science Department, Bar Ilan University, Israel;The MAVERICK Group, Computer Science Department, Bar Ilan University, Israel

  • Venue:
  • AAAI'05 Proceedings of the 20th national conference on Artificial intelligence - Volume 1
  • Year:
  • 2005

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Abstract

With increasing deployment of multi-agent and distributed systems, there is an increasing need for failure diagnosis systems. While successfully tackling key challenges in multi-agent settings, model-based diagnosis has left open the diagnosis of coordination failures, where failures often lie in the boundaries between agents, and thus the inputs to the model--with which the diagnoser simulates the system to detect discrepancies--are not known. However, it is possible to diagnose such failures using a model of the coordination between agents. This paper formalizes model-based coordination diagnosis, using two coordination primitives (concurrence and mutual exclusion). We define the consistency-based and abductive diagnosis problems within this formalization, and show that both are NP-Hard by mapping them to other known problems.