| Presentation | 1997/12/12 A Study on Word Spotting based on Likelihood Normalization Using Phoneme HMMs Masaharu KATOH, Takaaki HORI, Akinori ITO, Masaki KOHDA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent speech recognition, hidden Markov model (HMM) has been useful. We consider likelihood score of HMMs from a point of theory of probability. In continuous speech recognition, each hypothesis will have different length and position of speech segment. It affects the system performance by comparing the HMMs' scores directly. In this paper, we describe normalization of likelihood based on Bayes' theorem. To normalize likelihood, we use connected phoneme HMMs that allow Japanese syllable rule. In this method, we need no additional calculation to get scores, and we need no models except phoneme HMMs to the system. We apply it to the word-spotting, and obtain significant improvement of system performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | normalization of likelihood / word spotting / score function / connected phoneme HMMs |
| Paper # | NLC97-44 |
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| Conference Information | |
| Committee | NLC |
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| Conference Date | 1997/12/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Natural Language Understanding and Models of Communication (NLC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Word Spotting based on Likelihood Normalization Using Phoneme HMMs |
| Sub Title (in English) | |
| Keyword(1) | normalization of likelihood |
| Keyword(2) | word spotting |
| Keyword(3) | score function |
| Keyword(4) | connected phoneme HMMs |
| 1st Author's Name | Masaharu KATOH |
| 1st Author's Affiliation | Yamagata University() |
| 2nd Author's Name | Takaaki HORI |
| 2nd Author's Affiliation | Yamagata University |
| 3rd Author's Name | Akinori ITO |
| 3rd Author's Affiliation | Yamagata University |
| 4th Author's Name | Masaki KOHDA |
| 4th Author's Affiliation | Yamagata University |
| Date | 1997/12/12 |
| Paper # | NLC97-44 |
| Volume (vol) | vol.97 |
| Number (no) | 440 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |