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Boosting search by rare events

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arxiv cond-mat/0112142 v2 pith:LJKKEZNQ submitted 2001-12-08 cond-mat.stat-mech cond-mat.dis-nncs.CC

Boosting search by rare events

classification cond-mat.stat-mech cond-mat.dis-nncs.CC
keywords searchalgorithmseventsrareanalysisboostingbyproductcombinatorial
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Randomized search algorithms for hard combinatorial problems exhibit a large variability of performances. We study the different types of rare events which occur in such out-of-equilibrium stochastic processes and we show how they cooperate in determining the final distribution of running times. As a byproduct of our analysis we show how search algorithms are optimized by random restarts.

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