Exactly Learning Automata with Small Cover Time

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Exactly Learning Automata with Small Cover Time
We present algorithms for exactly learning unknown environments that can be described by deterministic nite automata. The learner performs a walk on the target automaton, where at each step it observes the output of the state it is at, and chooses a labeled edge to traverse to the next state. We assume that the learner has no means of a reset, and we also assume that the learner does not have access to a teacher that answers equivalence queries and gives the learner counterexamples to its hypotheses. We present two algorithms, one assumes that the outputs observed by the learner are always correct and the other assumes that the outputs might be erroneous. The running times of both algorithms are polynomial in the cover time of the underlying graph of the target automaton. Supported by a National Science Foundation Postdoctoral Research Fellowship, Grant No. DMS-9508963 ySupported by ONR Young Investigator Award N00014-93-1-0590 and grant No. 92-00226 from the United States - Israel Bi...
Dana Ron, Ronitt Rubinfeld
Added 25 Aug 2010
Updated 25 Aug 2010
Type Conference
Year 1995
Where COLT
Authors Dana Ron, Ronitt Rubinfeld
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