| Presentation | 2003/12/12 A Word-spotting Hypothesis Testing for Accepting/Rejecting Continuous Speech Recognition Output Frank K. SOONG, Wai-Kit LO, Satoshi NAKAMURA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The word rejection problem in speech recognition is formulated in a framework of word-spotting, where a spotted word is verified through a binary, acceptance/rejection decision. A generalized word posterior probability (GWPP), used as the sole confidence measure, is computed in a word graph, via the forward-backward algorithm or in an N-best list, using string likelihoods. The GWPP is further enhanced by incorporating all spotted words with the same word ID and overlapped time registrations. When tested on the Japanese BTEC speech database, the confidence error rate is significantly reduced, from 23.76% to 17.78% and 20.18% to 15.57% for the two test data sets, respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | confidence measure / word posterior probability / large vocabulary continuous speech recognition |
| Paper # | NLC2003-98 |
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| Conference Information | |
| Committee | NLC |
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| Conference Date | 2003/12/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
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| Paper Information | |
| Registration To | Natural Language Understanding and Models of Communication (NLC) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Word-spotting Hypothesis Testing for Accepting/Rejecting Continuous Speech Recognition Output |
| Sub Title (in English) | |
| Keyword(1) | confidence measure |
| Keyword(2) | word posterior probability |
| Keyword(3) | large vocabulary continuous speech recognition |
| 1st Author's Name | Frank K. SOONG |
| 1st Author's Affiliation | Spoken Language Translation Research Laboratories, ATR() |
| 2nd Author's Name | Wai-Kit LO |
| 2nd Author's Affiliation | Spoken Language Translation Research Laboratories, ATR |
| 3rd Author's Name | Satoshi NAKAMURA |
| 3rd Author's Affiliation | Spoken Language Translation Research Laboratories, ATR |
| Date | 2003/12/12 |
| Paper # | NLC2003-98 |
| Volume (vol) | vol.103 |
| Number (no) | 518 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |