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タイトル: | Character expression of a conversational robot for adapting to user personality |
著者: | Yamamoto, Kenta Inoue, Koji Kawahara, Tatsuya |
著者名の別形: | 山本, 賢太 井上, 昂治 河原, 達也 |
キーワード: | Conversational robot user adaptation character personality |
発行日: | 2024 |
出版者: | Taylor & Francis The Robotics Society of Japan |
誌名: | Advanced Robotics |
巻: | 38 |
号: | 4 |
開始ページ: | 256 |
終了ページ: | 266 |
抄録: | User adaptation is important in conversational robots to enhance the user experience and engagement. One way of user adaptation is to change the dialogue behavior. A character (e.g. extrovert or agreeable) can be defined to achieve human-like behaviors and user adaptation, and the appropriate character differs depending on each user. In this study, we investigate user adaptation by character expression of conversational robots. Our character expression model adopts the Big Five traits for controlling four dialogue behaviors: amount of utterance, backchannel frequency, filler frequency, and switching pause length. We cluster the system character and user personality into four classes based on an analysis of a speed dating dialogue corpus, and we found the best combinations between the system character and user personality. We implemented the character expression model into a laboratory guide and a chit-chat robot and conducted subjective experiments, where the subjects talked with robots with four different characters and evaluated their impressions of each character. The results shows that the Role model character was preferred for the task-oriented dialogue of the laboratory guide, but a robot character complementary to the subject personality was preferred for the non-task-oriented dialogue of the speed dating and chit-chat. |
記述: | Issue 4: Special Issue on Multimodal Processing and Robotics for Dialogue Systems (Part II). Guest editors: David Traum, Gabriel Skantze, Hiromitsu Nishizaki, Ryuichiro Higashinaka, Takashi Minato, and Takayuki Nagai |
著作権等: | This is an electronic version of an article published in ADVANCED ROBOTICS, [Volume 38., Issue 4., pp 256-266, Published online: 02 Dec 2023]. ADVANCED ROBOTICS is available online at: www.tandfonline.com/10.1080/01691864.2023.2285804. The full-text file will be made open to the public on 02 Dec 2024 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/287441 |
DOI(出版社版): | 10.1080/01691864.2023.2285804 |
出現コレクション: | 学術雑誌掲載論文等 |
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