| Presentation | 1997/10/17 A Study of Language Modeling using Stochastic Context Free Grammar with "Dependency Grammar" Masanobu YAGINUMA, Masaharu KATOH, 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 this paper, we propose a language model using stochastic context free grammar (SCFG) for speech recognition. To train an SCFG, inside-outside (I/O) algorithm is used. We modified I/O algorithm to treat with dependency grammar. To express dependency grammar, two categories of word are introduced : functional words (particle, auxiliary, suffix, etc.) and content words (noun, verb, adjective, etc.). Using dependency grammar, training time is reduced from the cube of number of nonterminal symbols to the square of it. We carried out an experiment to compare the proposed method with two conventional methods : the trigram model and the original SCFG model. We obtained significant reduction of training time compared with the original SCFG. The perplexity of the proposed model was smaller than other two models. Furthermore, we researched initial values to reduce training time andimprove performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | language model / stochastic contextfree grammar / dependency grammar / inside-outside algorithm |
| Paper # | NLC97-33 |
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| Conference Information | |
| Committee | NLC |
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| Conference Date | 1997/10/17(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 | 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 of Language Modeling using Stochastic Context Free Grammar with "Dependency Grammar" |
| Sub Title (in English) | |
| Keyword(1) | language model |
| Keyword(2) | stochastic contextfree grammar |
| Keyword(3) | dependency grammar |
| Keyword(4) | inside-outside algorithm |
| 1st Author's Name | Masanobu YAGINUMA |
| 1st Author's Affiliation | Faculty of Engineering, Yamagata University() |
| 2nd Author's Name | Masaharu KATOH |
| 2nd Author's Affiliation | Faculty of Engineering, Yamagata University |
| 3rd Author's Name | Akinori ITO |
| 3rd Author's Affiliation | Faculty of Engineering, Yamagata University |
| 4th Author's Name | Masaki KOHDA |
| 4th Author's Affiliation | Faculty of Engineering, Yamagata University |
| Date | 1997/10/17 |
| Paper # | NLC97-33 |
| Volume (vol) | vol.97 |
| Number (no) | 330 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |