Presentation 2014-07-24
Investigation of Combining Multiple Language Modeling Techniques in Japanese Spontaneous Speech Recognition
Ryo MASUMURA, Taichi ASAMI, Takanobu OBA, Hirokazu MASATAKI, Sumitaka SAKAUCHI,
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Abstract(in English) Recent large vocabulary speech recognition systems consist of two statistical models, the acoustic and language models. In acoustic modeling, deep neural networks have realized a breakthrough and significant performance improvements have been achieved. On the other hand, in language modeling, there have not been any reports of comparable improvements. Although it is clear that recent practical language models have several problems such as "locality", "task dependency" and "data sparseness", we cannot obtain significant performance improvements by solving these problems separately. In this paper, we try to use various language modeling techniques simultaneously to cover the entire problem. Our investigation is conducted by dividing language modeling techniques into three viewpoints, "one pass decoding", "unsupervised adaptation" and "rescoring".
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Keyword(in English) language models / one pass decoding / unsupervised adaptation / rescoring
Paper # SP2014-63
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Committee SP
Conference Date 2014/7/17(1days)
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Registration To Speech (SP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Investigation of Combining Multiple Language Modeling Techniques in Japanese Spontaneous Speech Recognition
Sub Title (in English)
Keyword(1) language models
Keyword(2) one pass decoding
Keyword(3) unsupervised adaptation
Keyword(4) rescoring
1st Author's Name Ryo MASUMURA
1st Author's Affiliation NTT Media Intelligence Laboratories()
2nd Author's Name Taichi ASAMI
2nd Author's Affiliation NTT Media Intelligence Laboratories
3rd Author's Name Takanobu OBA
3rd Author's Affiliation NTT Media Intelligence Laboratories
4th Author's Name Hirokazu MASATAKI
4th Author's Affiliation NTT Media Intelligence Laboratories
5th Author's Name Sumitaka SAKAUCHI
5th Author's Affiliation NTT Media Intelligence Laboratories
Date 2014-07-24
Paper # SP2014-63
Volume (vol) vol.114
Number (no) 151
Page pp.pp.-
#Pages 6
Date of Issue