In continuous speech recognition, N-best has many applications. This paper analyzes the commonly used N-best search algorithms, such as parallel algorithm, sequential algorithm and Tree-Trellis algorithm, and points out the efficiency of Tree-Trellis algorithm, then gives out a more efficient method based on Tree-Trellis algorithm, finally gives out N best path efficiently.keywords: A* algorithm N-best Tree-TrellisA Efficient Tree-Trellis N-best Algorithm And Its Application In Chinese Speech RecognitionAbstract N-best search is of vital importance in large vocabulary continuous speech recognition. This paper first gives a deep insight of the traditional N-best search algorithm, such as parallel algorithm, sequential algorithm and Tree-Trellis algorithm, and point out the efficiency of Tree-Trellis algorithm, then gives out a more efficient method based on Tree-Trellis algorithm, finally gives out N best path efficiently.keywords: A* algorithm N-best Tree-Trellis
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