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Parallel Branch-and-Bound Formulations for AND/OR Tree Search

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2 Author(s)
Vipin Kumar ; Department of Computer Sciences, University of Texas at Austin, Austin, TX 78712. ; Laveen N. Kanal

This paper discusses two general schemes for performing branch-and-bound (B&B) search in parallel. These schemes are applicable in principle to most of the problems which can be solved by B&B. The schemes are implemented for SSS*, a versatile algorithm having applications in game tree search, structural pattern analysis, and AND/OR graph search. The performance of parallel SSS* is studied in the context of AND/OR tree and game tree search. The paper concludes with comments on potential applications of these parallel implementations of SSS* in structural pattern analysis and game playing.

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IEEE Transactions on Pattern Analysis and Machine Intelligence  (Volume:PAMI-6 ,  Issue: 6 )