| Presentation | 2000/12/14 State Selection using Context-Independent HMM for Fast Likelihood Calculation Akinobu Lee, Tatsuya Kawahara, Kiyohiro Shikano, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We address a method to efficiently select Gaussian mixtures for fast acoustic likelihood computation. It makes use of context-independent models for selection and back-off of corresponding triphone models. Specifically, for the k-best phone models by the preliminary evaluation, triphone models of higher resolution are applied, and others are assigned likelihoods with the monophone models. This selection scheme assigns more reliable back-off likelihoods to the un-selected states than the conventional Gaussian selection based on a VQ codebook, Experimental results show that this method can achieves a comparable performance, and works much better under the aggressive pruning condition. Together with the phonetic tied-mixture (PTM) modeling, acoustic matching cost is reduced to almost 14% with little loss of accuracy. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LVCSR / Gaussian selection / state selection / PTM |
| Paper # | NLC2000-43,SP2000-91 |
| Date of Issue |
| Conference Information | |
| Committee | NLC |
|---|---|
| Conference Date | 2000/12/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Natural Language Understanding and Models of Communication (NLC) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | State Selection using Context-Independent HMM for Fast Likelihood Calculation |
| Sub Title (in English) | |
| Keyword(1) | LVCSR |
| Keyword(2) | Gaussian selection |
| Keyword(3) | state selection |
| Keyword(4) | PTM |
| 1st Author's Name | Akinobu Lee |
| 1st Author's Affiliation | Nara Institute of Science and Technology() |
| 2nd Author's Name | Tatsuya Kawahara |
| 2nd Author's Affiliation | Kyoto University |
| 3rd Author's Name | Kiyohiro Shikano |
| 3rd Author's Affiliation | Nara Institute of Science and Technology |
| Date | 2000/12/14 |
| Paper # | NLC2000-43,SP2000-91 |
| Volume (vol) | vol.100 |
| Number (no) | 520 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |