@article{oai:ipsj.ixsq.nii.ac.jp:00145951,
 author = {鈴木, 直人 and 廣井, 富 and 千葉, 祐弥 and 能勢, 隆 and 伊藤, 彰則 and Naoto, Suzuki and Yutaka, Hiroi and Yuya, Chiba and Takashi, Nose and Akinori, Ito},
 issue = {11},
 journal = {情報処理学会論文誌},
 month = {Nov},
 note = {本研究では，音声を用いた英会話の学習が可能なコンピュータ利用言語学習（Computer-Assisted Language Learning, CALL）システムを提案する．特に，英会話学習における学習者の応答タイミングに着目する．一般的に学習段階において応答タイミングは適切なものに比べ遅くなりがちであるが，システムとの英会話では応答タイミングを意識しにくい．そこで対話相手としてCGキャラクタを導入し，応答を要求する表現であるタイムプレッシャー表現を付加する練習方法を提案する．CGキャラクタの有無，タイムプレッシャー表現の有無のほかに，短期間での繰返し練習，および期間をおいた練習を通じて，提案手法の有効性について論じる．, We propose a CALL (Computer-Assisted Language Learning) system for training of English conversation using spoken dialogue. Especially, we focus on a spoken dialogue system for training the learner's timing of response. To suppress the long pause and practice an appropriate pause duration, we introduced a CG character as a counterpart of the dialogue installed the behavior of “time pressure” to prevent the learner taking long time to consider the utterance. To verify if the expression is effective, we desighed three experiments. First, we conducted with or without CG character. Second experiment was conducted with or without the time-pressure expression. Finally, we conducted the learning of dialogue in short-term repetition as well as the same learning after two weeks interval. In conclusion, we discuss the effectiveness of the proposed method.},
 pages = {2177--2189},
 title = {応答タイミングを考慮した英会話練習のための音声対話型英語学習システム},
 volume = {56},
 year = {2015}
}