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タイトル: | Selecting Help Messages by Using Robust Grammar Verification for Handling Out-of-Grammar Utterances in Spoken Dialogue Systems |
著者: | Komatani, Kazunori Fukubayashi, Yuichiro Ikeda, Satoshi Ogata, Tetsuya Okuno, Hiroshi G. |
著者名の別形: | 奥乃, 博 |
キーワード: | spoken dialogue system help generation out-of-grammar utterances novice user utterance history |
発行日: | 1-Dec-2010 |
出版者: | The Institute of Electronics, Information and Communication Engineers(IEICE) |
誌名: | IEICE Transactions Information and Systems |
巻: | E93-D |
号: | 12 |
開始ページ: | 3359 |
終了ページ: | 3367 |
抄録: | We address the issue of out-of-grammar (OOG) utterances in spoken dialogue systems by generating help messages. Help message generation for OOG utterances is a challenge because language understanding based on automatic speech recognition (ASR) of OOG utterances is usually erroneous; important words are often misrecognized or missing from such utterances. Our grammar verification method uses a weighted finite-state transducer, to accurately identify the grammar rule that the user intended to use for the utterance, even if important words are missing from the ASR results. We then use a ranking algorithm, RankBoost, to rank help message candidates in order of likely usefulness. Its features include the grammar verification results and the utterance history representing the user's experience. |
著作権等: | © 2010 The Institute of Electronics, Information and Communication Engineers |
URI: | http://hdl.handle.net/2433/187386 |
DOI(出版社版): | 10.1587/transinf.E93.D.3359 |
出現コレクション: | 学術雑誌掲載論文等 |
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