| Presentation | 1997/1/16 Speaker adaptation based on Tree-Structured Tied-Difference vectors and Their Confidence. Kazuki Shibata, Hiroshi Matsumoto, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In speaker adaptation based on the Tree-Structured probability density function (pdf) of HMMs, this paper propose a method to improve adaptation accuracy using a confidence parameter in maximum a posteriori (MAP) estimation. In this method, the directional components of difference vectors for adaptation are tied together, and their magnitudes are independently estimated by an approximate MAP method. The confidence parameter of a prior model is optimized depending on the number of training samples assigned to a cluster of pdfs. Phoneme recognition tests show that the proposed method attaines a 2.4 to 2.9% higher recognition accuracy than the original tree-structured-based method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Speaker Adaptation / MAP Estimation / Continuous HMM / Tree-Structure / Speech Recognition |
| Paper # | SP96-90 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 1997/1/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Speech (SP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Speaker adaptation based on Tree-Structured Tied-Difference vectors and Their Confidence. |
| Sub Title (in English) | |
| Keyword(1) | Speaker Adaptation |
| Keyword(2) | MAP Estimation |
| Keyword(3) | Continuous HMM |
| Keyword(4) | Tree-Structure |
| Keyword(5) | Speech Recognition |
| 1st Author's Name | Kazuki Shibata |
| 1st Author's Affiliation | Faculty of Engineering, Shinshu University() |
| 2nd Author's Name | Hiroshi Matsumoto |
| 2nd Author's Affiliation | Faculty of Engineering, Shinshu University |
| Date | 1997/1/16 |
| Paper # | SP96-90 |
| Volume (vol) | vol.96 |
| Number (no) | 448 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |