<XML><RECORDS><RECORD><REFERENCE_TYPE>7</REFERENCE_TYPE><REFNUM>8004</REFNUM><AUTHORS><AUTHOR>Donaldson,A.F.</AUTHOR><AUTHOR>Miller,A.</AUTHOR></AUTHORS><YEAR>2005</YEAR><TITLE>Symmetry Reduction for Probabilistic Systems</TITLE><PLACE_PUBLISHED>Proceedings of the 12th Worskhop on Automated Reasoning, Edinburgh, July 2005.</PLACE_PUBLISHED><PUBLISHER>N/A</PUBLISHER><PAGES>17--18</PAGES><LABEL>Donaldson:2005:8004</LABEL><ABSTRACT>Symmetry reduction techniques have been quite successful in combatting the state-space explosion problem for temporal logic model checking. Recently, there has been a lot of interest in using model checkers to verify properties of probabilistic systems. We describe work in progress in extending symmetry reduction techniques to apply to discrete time Markov chains and Markov decision processes, and present preliminary results implementing symmetry reduction for the PRISM model checker.</ABSTRACT><NOTES>To appear</NOTES></RECORD></RECORDS></XML>