NDLI: An algorithm of high resolution and efficient multiple string hypothesization for continuous speech recognition using inter-word models

Content Provider	IEEE Xplore Digital Library
Author	Chou, W. Matsuoka, T. Juang, B.-H. Lee, C.-H.
Copyright Year	1994
Description	Author affiliation: Dept. of Res. Technol., AT&T Bell Labs., Murray Hill, NJ, USA (Chou, W.)
Abstract	We propose a new accurate string hypothesization algorithm to find the N-best multiple string hypotheses in continuous speech recognition. The algorithm differs from the conventional N-best search algorithms in that it allows the use of the same set of long term language model scores and the detailed context-dependent subword models such as inter-word context dependent triphone models in both forward and backward search for high performance speech recognition. It is an extension of the tree-trellis N-best search algorithm[1]. The inter-word context dependency is exactly preserved in both forward partial path map preparation and the proposed backward N-best multiple string hypothesis tree search. The search efficiency is maximized by applying the same high resolution acoustic and language models in both search directions. When search heuristics are used, the proposed approach provides a more accurate string model matching than that of the conventional frame-synchronous Viterbi beam search decoder.<>
File Size	424456
File Format	PDF
ISBN	0780317750
ISSN	15206149
DOI	10.1109/ICASSP.1994.389696
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-04-19
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Context modeling Speech recognition Acoustic beams Decoding Humans Laboratories Natural languages Viterbi algorithm Protection
Content Type	Text
Resource Type	Article

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