Carnegie Mellon University
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Planning with pinch points

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journal contribution
posted on 2004-01-01, 00:00 authored by Dave Ferguson, Anthony Stentz, Thrun
Abstract: "We describe a heuristic search algorithm for generating optimal plans in a new class of decision problem, characterised by the incorporation of hidden state. The approach exploits the nature of the hidden state to reduce the state space by orders of magnitude. It then interleaves AO*-type heuristic expansion of the reduced space with forwards and backwards propagation phases to produce a solution in a fraction of the time required by other techniques. Results are provided on an outdoor path planning application."


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