Advancement of speech recognition technology using WFST
Project/Area Number |
21300062
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Perception information processing/Intelligent robotics
|
Research Institution | Tokyo Institute of Technology |
Principal Investigator |
|
Co-Investigator(Kenkyū-buntansha) |
SHINODA Koichi 東京工業大学, 大学院・情報理工学研究科, 准教授 (10343097)
SHINOZAKI Takahiro 千葉大学, 大学院・融合科学研究科, 助教 (80447903)
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2011: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2010: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2009: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
|
Keywords | 音声情報処理 / 音声認識 / WFST / デコーダ |
Research Abstract |
With the aim of improving the performance of automatic speech recognition using the Weighted Finite State Transducer(WFST)-based decoder and developing new applications of the decoder, a wide range of research has been conducted and various achievements have been obtained. The world highest performance speech recognition decoder,"T^3 decoder", has been developed by improving the on-the-fly algorithm for the WFST decoder. Recognition performance under noisy environment has been improved by incorporating speech/non-speech information to the decoder. Various new techniques have been developed to apply the decoder to the recognition of resource-deficient languages and code-switching speech, and to transliteration. Innovative ideas have been proposed toward new directions of the decoder technology. T^3 decoder has been released to domestic as well as overseas research laboratories.
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Report
(4 results)
Research Products
(78 results)