Advanced indexing based on spoken document retrieval and its feedback
Project/Area Number |
25330128
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Multimedia database
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Research Institution | Shizuoka University |
Principal Investigator |
KAI ATSUHIKO 静岡大学, 工学部, 准教授 (60283496)
|
Co-Investigator(Kenkyū-buntansha) |
WANG Longbiao 長岡技術科学大学, 技学研究院, 准教授 (30510458)
|
Co-Investigator(Renkei-kenkyūsha) |
KOGURE Satoru 静岡大学, 情報学部, 講師 (40359758)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
Keywords | 音声ドキュメント検索 / 音声検索語検出 / STD / 音声クエリ / DNN / 音声認識信頼度 / スコア正規化 / 音声区間検出 / 雑音残響環境 / 残響除去 / 認識精度推定 / VAD / 話者認識 / 信頼度 |
Outline of Final Research Achievements |
We investigated and developed elemental technologies for indexing and other related processes which are designed to permit efficient and sustainable development of spoken document retrieval systems. For dealing with a possible change in speech features regarding to the recording conditions and speakers, we proposed DNN-based voice activity detection (VAD) and dereverberation models as a frontend of speaker diarization and speech recognition systems and improved accuracy for those systems. Also, we proposed DNN-based feature transformation as a rescoring step of spoken term detection (STD) system for coping with out-of-vocabulary words and the STD performance has been significantly improved.
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Report
(4 results)
Research Products
(20 results)
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[Presentation] 非同期音声収録を用いた遠隔発話音声認識2014
Author(s)
寺岡俊汰, 上田雄磨, 王 龍標, 甲斐充彦, 福島 拓
Organizer
音学シンポジウム2014 (電子情報通信学会)
Place of Presentation
日本大学文理学部キャンパス(東京都世田谷区)
Year and Date
2014-05-24
Related Report
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