An efficient lexical tree search for large vocabulary continuous speech recognition
An efficient lexical tree search for large vocabulary continuous speech recognition
复制标题
用于大词汇量连续语音识别的高效词汇树搜索
DOI:
10.21437/icslp.2000-432
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发表时间:
2000
期刊:
影响因子:
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通讯作者:
Y. Ariki
中科院分区:
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作者:
J. Ogata;Y. Ariki
This paper describes an efficient search algorithm for a high speed and high accuracy LVCSR system. A conventional-ly used lexical tree search is an efficient method, but has a problem in incorporating the language probability. To solve this problem, we propose in this paper a new efficient search algorithm incorporating the language model structure. In our developed LVCSR, 2-pass search algorithm is adopted to produce a word graph as an intermediate expression. The experimental results on the 20,000-word Japanese dictation task showed that the proposed method can reduce approximately half of the processing time without increasing any errors.
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