The Complexity of Epistemic Model Checking: Clock Semantics and Branching Time

  • Authors:
  • X. Huang;R. van der Meyden

  • Affiliations:
  • School of Computer Science and Engineering, University of New South Wales, email: {xiaoweih,meyden}@cse.unsw.edu.au;School of Computer Science and Engineering, University of New South Wales, email: {xiaoweih,meyden}@cse.unsw.edu.au

  • Venue:
  • Proceedings of the 2010 conference on ECAI 2010: 19th European Conference on Artificial Intelligence
  • Year:
  • 2010

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Abstract

In the clock semantics for epistemic logic, two situations are indistinguishable for an agent when it makes the same observation and the time in the situations is the same. The paper characterizes the complexity of model checking branching time logics of knowledge in finite state systems with respect to the clock semantics.