Cube pruning as heuristic search

  • Authors:
  • Mark Hopkins;Greg Langmead

  • Affiliations:
  • Language Weaver, Inc., Marina del Rey, CA;Language Weaver, Inc., Marina del Rey, CA

  • Venue:
  • EMNLP '09 Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing: Volume 1 - Volume 1
  • Year:
  • 2009

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Abstract

Cube pruning is a fast inexact method for generating the items of a beam decoder. In this paper, we show that cube pruning is essentially equivalent to A* search on a specific search space with specific heuristics. We use this insight to develop faster and exact variants of cube pruning.