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予測文と部分単語認識の併用による音声対話システムの検討

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(1)IPSJ SIG Technical Reports. 2006-SLP-64 (8). .. 2006/12/21. T263-8522 ^J(W^m«^K»£Br 1-33 E-mail:. T [email protected],. X {nishida,hory,ichikawa}@faculty.chiba-u.jp. A study on spoken dialogue system. based on parallel recognition of prediction sentence and partial word Makiho KAWAKAMIT. Masafumi NISHIDA *. T t Faculty of Engineering, Chiba University E-mail: Abstract. Yasuo HORIUCHIx. Akira ICHIKAWAl. 1-33 Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522 Japan. t [email protected],. t {nishida,hory,ichikawa}@faculty.chiba-u.jp. We have proposed a method that predicts user's utterances in spoken dialogue systems by recognizing prediction. sentences of each dialogue state, thereby decreasing recognition errors. However, the conventional method might repeat. recognition errors because it confirms the whole sentence even if it recognizes only a part of a long word, such as a compound word, correctly. In this study, we propose a method using decoders based on prediction sentences and partial words obtained by. dividing long words. The proposed method can confirm user's utterances by selecting a candidate to a partial matched word using recognition results of the prediction sentence and a divided partial word. We conducted experiments in setting a destination of a car navigation system. We demonstrated that it is possible to confirm user's utterances effectively using the proposed method by selecting recognition candidates. Keyword. Spoken dialogue system, Prediction sentence recognition, Partial word recognition, Selection of recognition. candidates, Confidence measure. fe*^,. -43-. 17-.

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