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Yamamoto Kenta
山本 賢太
Yamamoto Kenta
山本 賢太
The Institute of Scientific and Industrial Research,Assistant Professor

Research History 2

  1. 2023/04 - Present
    Osaka University The Institute of Scientific and Industrial Research Assistant professor

  2. 2020/04 - 2023/03
    Japan Society for the Promotion of Science

Education 5

  1. Kyoto University Graduate School of Informatics Department of Intelligence Science and Technology

    2020/04 - 2023/03

  2. Kyoto University Graduate School of Informatics Department of Intelligence Science and Technology

    2018/04 - 2020/03

  3. Kyoto University Graduate School of Informatics Department of Intelligence Science and Technology

    2017/04 - 2018/03

  4. Kyoto University Faculty of Engineering School of Informatics & Mathematical Science

    2014/04 - 2017/03

  5. Kyoto University Faculty of Engineering Undergraduate School of Civil, Enviromental and Resources Engineering

    2012/04 - 2014/03

Committee Memberships 2

  1. ⽇本⾳響学会 ⽇本⾳響学会関⻄⽀部 若⼿の会実⾏委員 Academic society

    2025/04 - Present

  2. 人工知能学会 言語・音声理解と対話処理研究会(SIG-SLUD)専門委員 Academic society

    2024/04 - Present

Professional Memberships 2

  1. 人工知能学会

  2. 情報処理学会

Research Areas 3

  1. Informatics / Intelligent informatics /

  2. Informatics / Intelligent robotics /

  3. Informatics / Perceptual information processing /

Awards 5

  1. Best Paper Award

    Kenta Yamamoto, Koji Inoue, Tatsuya Kawahara International Workshop on Spoken Dialogue Systems Technology (IWSDS) 2023 2023/02

  2. 第252回自然言語処理研究会 優秀研究賞

    山本賢太, 河野誠也, 河原達也, 吉野幸一郎 情報処理学会 2022/06

  3. 第90回 言語・音声理解と対話処理研究会 若手優秀賞

    山本賢太 人工知能学会 2020/11

  4. 研究会優秀賞

    山本賢太, 井上昂治, 中村静, 高梨克也, 河原達也 人工知能学会 2019/06

  5. 第80回全国大会 学生奨励賞

    山本賢太 情報処理学会 2018/03

Papers 24

  1. Developing Classifiers for Affirmative and Negative User Responses with Limited Target Domain Data for Dialogue System Development Tools.

    Yunosuke Kubo, Ryo Yanagimoto, Mikio Nakano, Kenta Yamamoto, Ryu Takeda, Kazunori Komatani

    The 15th International Workshop on Spoken Dialogue Systems Technology (IWSDS) 2025/05 Research paper (international conference proceedings)

  2. Analysis of Voice Activity Detection Errors in API-based Streaming ASR for Human-Robot Dialogue

    Kenta Yamamoto, Ryu Takeda, Kazunori Komatani

    The 15th International Workshop on Spoken Dialogue Systems Technology (IWSDS) 2025/05 Research paper (international conference proceedings)

  3. Data Augmentation for Robust Natural Language Generation Based on Phrase Alignment and Sentence Structure

    Kenta Yamamoto, Seiya Kawano, Tatsuya Kawahara, Koichiro Yoshino

    The 14th International Workshop on Spoken Dialogue Systems(IWSDS) 2024/03 Research paper (international conference proceedings)

  4. Character expression of a conversational robot for adapting to user personality

    Kenta Yamamoto, Koji Inoue, Tatsuya Kawahara

    Advanced Robotics Vol. 38 No. 4 p. 256-266 2023/12/02 Research paper (scientific journal)

    Publisher: Informa UK Limited
  5. Knowledge Graph Augmentation with Entity Identification for Improving Knowledge Graph Completion Performance

    Shuichi Chikatsuji, Kenta Yamamoto, Ryu Takeda, Kazunori Komatani

    PRICAI 2023: Trends in Artificial Intelligence p. 480-486 2023/11 Part of collection (book)

    Publisher: Springer Nature Singapore
  6. Dual variational generative model and auxiliary retrieval for empathetic response generation by conversational robot

    Yahui Fu, Koji Inoue, Divesh Lala, Kenta Yamamoto, Chenhui Chu, Tatsuya Kawahara

    Advanced Robotics Vol. 37 No. 21 p. 1406-1418 2023/10/20 Research paper (scientific journal)

    Publisher: Informa UK Limited
  7. Character expression for spoken dialogue systems with semi-supervised learning using Variational Auto-Encoder

    Kenta Yamamoto, Koji Inoue, Tatsuya Kawahara

    Computer Speech & Language Vol. 79 p. 101469-101469 2023/04 Research paper (scientific journal)

  8. Semi-autonomous guide agents with simultaneous handling of multiple users.

    Yusuke Muraki, Haruki Kawai, Kenta Yamamoto, Koji Inoue, Divesh Lala, Tatsuya Kawahara

    International Workshop on Spoken Dialogue Systems (IWSDS) 2023/03 Research paper (international conference proceedings)

  9. Improving empathetic response generation with retrieval based on emotion recognition

    Yahui Fu, Koji Inoue, Divesh Lala, Kenta Yamamoto, Chenhui Chu, Tatsuya, Kawahara

    International Workshop on Spoken Dialogue Systems (IWSDS) 2023/03 Research paper (international conference proceedings)

  10. Character adaptation of spoken dialogue systems based on user personalities

    Kenta Yamamoto, Koji Inoue, Tatsuya Kawahara

    International Workshop on Spoken Dialogue Systems (IWSDS) 2023/03 Research paper (international conference proceedings)

  11. Multimodal Persuasive Dialogue Corpus using Teleoperated Android.

    Seiya Kawano, Muteki Arioka, Akishige Yuguchi, Kenta Yamamoto, Koji Inoue, Tatsuya Kawahara, Satoshi Nakamura, Koichiro Yoshino

    INTERSPEECH p. 2308-2312 2022/09 Research paper (international conference proceedings)

  12. Simultaneous Job Interview System Using Multiple Semi-autonomous Agents.

    Haruki Kawai, Yusuke Muraki, Kenta Yamamoto, Divesh Lala, Koji Inoue, Tatsuya Kawahara

    SIGdial Meeting on Discourse and Dialogue (SIGDIAL) p. 107-110 2022/09 Research paper (international conference proceedings)

  13. An Attentive Listening System for Autonomous Android ERICA: Comparative Evaluation with Human Attentive Listeners

    Inoue Koji, Lala Divesh, Yamamoto Kenta, Nakamura Shizuka, Takanashi Katsuya, Kawahara Tatsuya

    Transactions of the Japanese Society for Artificial Intelligence Vol. 36 No. 5 p. H-L51_1-12 2021/09/01

    Publisher: The Japanese Society for Artificial Intelligence
  14. A multi-party attentive listening robot which stimulates involvement from side participants.

    Koji Inoue, Hiromi Sakamoto, Kenta Yamamoto, Divesh Lala, Tatsuya Kawahara

    SIGdial Meeting on Discourse and Dialogue (SIGDIAL) p. 261-264 2021/07 Research paper (international conference proceedings)

    Publisher: Association for Computational Linguistics
  15. Semi-autonomous avatar enabling unconstrained parallel conversations -seamless hybrid of WOZ and autonomous dialogue systems-.

    Tatsuya Kawahara, Naoyuki Muramatsu, Kenta Yamamoto, Divesh Lala, Koji Inoue

    Advanced Robotics Vol. 35 No. 11 p. 657-663 2021/05/19 Research paper (scientific journal)

  16. Findings from human-android dialogue with ERICA

    Divesh Lala, Koji Inoue, Kenta Yamamoto, Tatsuya Kawahara

    RobotDial Workshop on Dialogue Models for Human-Robot Interaction (ROBOTDIAL), IJCAI-PRICAI workshop 2021/01 Research paper (international conference proceedings)

  17. Semi-Supervised Learning for Character Expression of Spoken Dialogue Systems.

    Kenta Yamamoto, Koji Inoue, Tatsuya Kawahara

    INTERSPEECH p. 4188-4192 2020/10 Research paper (international conference proceedings)

    Publisher: ISCA
  18. Job Interviewer Android with Elaborate Follow-up Question Generation.

    Koji Inoue, Kohei Hara, Divesh Lala, Kenta Yamamoto, Shizuka Nakamura, Katsuya Takanashi, Tatsuya Kawahara

    International Conference on Multimodal Interaction (ICMI) p. 324-332 2020/10 Research paper (international conference proceedings)

    Publisher: ACM
  19. A Job Interview Dialogue System That Asks Follow-up Questions: Implementation and Evaluation with an Autonomous Android

    Koji Inoue, Kohei Hara, Divesh Lala, Shizuka Nakamura, Katsuya Takanashi, Kawahara Tatsuya

    Transactions of the Japanese Society for Artificial Intelligence Vol. 35 No. 5 p. D-K43_1 2020/09 Research paper (scientific journal)

    Publisher: Japanese Society for Artificial Intelligence
  20. A Character Expression Model Affecting Spoken Dialogue Behaviors.

    Kenta Yamamoto, Koji Inoue, Shizuka Nakamura, Katsuya Takanashi, Tatsuya Kawahara

    The 11th International Workshop on Spoken Dialogue Systems (IWSDS) p. 3-13 2020/09 Research paper (international conference proceedings)

    Publisher: Springer
  21. An Attentive Listening System with Android ERICA: Comparison of Autonomous and WOZ Interactions.

    Koji Inoue, Divesh Lala, Kenta Yamamoto, Shizuka Nakamura, Katsuya Takanashi, Tatsuya Kawahara

    SIGdial Meeting on Discourse and Dialogue (SIGDIAL) p. 118-127 2020/07 Research paper (international conference proceedings)

    Publisher: Association for Computational Linguistics
  22. Engagement-Based Adaptive Behaviors for Laboratory Guide in Human-Robot Dialogue.

    Koji Inoue, Divesh Lala, Kenta Yamamoto, Katsuya Takanashi, Tatsuya Kawahara

    The 10th International Workshop on Spoken Dialogue Systems (IWSDS) p. 129-139 2019/04 Research paper (international conference proceedings)

    Publisher: Springer
  23. Dialogue Behavior Control Model for Expressing a Character of Humanoid Robots

    Kenta Yamamoto, Koji Inoue, Shizuka Nakamura, Katsuya Takanashi, Tatsuya Kawahara

    Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC) p. 1732-1737 2018/11 Research paper (international conference proceedings)

  24. A Dialogue Behavior Control Model for Expressing a Characters of Humanoid Robots

    Yamamoto Kenta, Inoue Koji, Nakamura Shizuka, Takanashi Katsuya, Kawahara Tatsuya

    Transactions of the Japanese Society for Artificial Intelligence Vol. 33 No. 5 p. C-I37_1-9 2018/09/01

    Publisher: The Japanese Society for Artificial Intelligence

Misc. 29

  1. 発話交替の競合修復のためのシステム行動選択に向けた多人数対話データの収集

    堀口 勇輝, 山本 賢太, 武田 龍, 駒谷 和範

    第24回情報科学技術フォーラム 2025/09 Research paper, summary (national, other academic conference)

  2. ユーザの関係継続意思を明確化する質問を行う対話システム

    沼田 晃士朗, 小川 優介, 平川 巧人, 亀山 京右, 山本 賢太, 駒谷 和範

    第103回言語・音声理解と対話処理研究会 2025/03/20 Research paper, summary (national, other academic conference)

  3. 状態遷移に基づく対話管理とLLMによる応答生成を用いた観光地推薦システム

    亀山 京右, 深澤 俊介, 山本 賢太, 駒谷 和範

    第103回言語・音声理解と対話処理研究会 2025/03/20 Research paper, summary (national, other academic conference)

  4. 音声対話システムにおける交換内部でのマルチモーダル心象推定

    雪澤 大地, 山本 賢太, 武田 龍, 駒谷 和範

    第87回全国大会講演論文集 2025/03/13 Research paper, summary (national, other academic conference)

  5. ペルソナを反映したシステム発話のための長い対話におけるプロンプトの分析

    小川 優介, 山本 賢太, 駒谷 和範

    第87回全国大会講演論文集 2025/03/13 Research paper, summary (national, other academic conference)

  6. 人間の認知傾向を考慮した音声対話システムの性格表現:テキスト対話と音声対話の比較

    山本 賢太, 駒谷 和範

    第102回言語・音声理解と対話処理研究会 2024/11/29 Research paper, summary (national, other academic conference)

  7. 対話ロボットコンペティションのためのユーザ応答に対する肯定否定判定器の開発

    久保裕之輔, 柳元 涼, 山本賢太, 中野幹生, 武田 龍, 駒谷和範

    第86回全国大会講演論文集 2024/03 Research paper, summary (national, other academic conference)

  8. 特定ドメインの対話システムにおける発話矛盾検出のための前提文生成

    堀口勇輝, 山本賢太, 武田 龍, 駒谷和範

    第86回全国大会講演論文集 2024/03 Research paper, summary (national, other academic conference)

  9. ユーザの性別・年齢・性格特性に基づくマルチモーダル心象推定

    柳元 涼, 山本賢太, 武田 龍, 駒谷和範

    第86回全国大会講演論文集 2024/03 Research paper, summary (national, other academic conference)

  10. 大規模言語モデルにより性格特性を反映させた発話生成の評価

    山本 賢太, 駒谷 和範

    第100回言語・音声理解と対話処理研究会 p. 7-12 2024/02/20 Research paper, summary (national, other academic conference)

  11. 音声対話システムによる雑談対話におけるキャラクタ表現に基づくユーザ適応の検討

    山本 賢太, 井上 昂治, 河原 達也

    人工知能学会研究会資料 言語・音声理解と対話処理研究会 Vol. 96 2022/12/01

    Publisher: 一般社団法人 人工知能学会
  12. フレーズアライメントと文構造に基づくデータ拡張を用いた頑健な自然言語生成

    山本賢太, 河野誠也, 河原達也, 吉野幸一郎

    情報処理学会研究報告 Vol. 2022-NL-252 No. 10 p. 1-8 2022/06/22

  13. 遠隔操作アンドロイドを用いたマルチモーダル説得対話コーパスの収集と分析

    有岡無敵, 山本賢太, 井上昂治, 河原達也, 中村哲, 吉野幸一郎

    言語処理学会第28回年次大会 2022/03

  14. 回答評価とキーワード抽出を用いた同時並列就職面接対話システム

    川井, 悠生, 山本, 賢太, Lala, Divesh, 井上, 昂治, 河原, 達也

    第84回全国大会講演論文集 Vol. 2022 No. 1 p. 307-308 2022/02/17

  15. 半自律並列プレゼン対話システムのための質問分類による介入タイミング制御

    村木, 優介, 山本, 賢太, Lala, Divesh, 井上, 昂治, 河原, 達也

    第84回全国大会講演論文集 Vol. 2022 No. 1 p. 303-304 2022/02/17

  16. 音声対話システムのユーザ適応に向けたパーソナリティの関係性の分析

    山本 賢太, 井上 昂治, 河原 達也

    人工知能学会研究会資料 言語・音声理解と対話処理研究会 Vol. 93 p. 09-14 2021/11/29

    Publisher: 一般社団法人 人工知能学会
  17. 話し手以外のユーザへの参与促進発話を生成する多人数傾聴対話システム

    坂本, 寛弥, 山本, 賢太, Lala Divesh, 井上, 昂治, 河原, 達也

    第83回全国大会講演論文集 Vol. 2021 No. 1 p. 221-222 2021/03/04

  18. Comparison of android ERICA with a WOZ as an attentive listener

    INOUE Koji, LALA Divesh, YAMAMOTO Kenta, NAKAMURA Shizuka, TAKANASHI Katsuya, KAWAHARA Tatsuya

    JSAI Technical Report, SIG-SLUD Vol. 90 2020/11/24

    Publisher: The Japanese Society for Artificial Intelligence
  19. Character expression for spoken dialogue systems by semi-supervised learning using VAE

    YAMAMOTO Kenta, INOUE Koji, KAWAHARA Tatsuya

    JSAI Technical Report, SIG-SLUD Vol. 90 2020/11/24

    Publisher: The Japanese Society for Artificial Intelligence
  20. WOZとの比較による自律型アンドロイドERICAの傾聴対話システムの評価

    井上 昂治, Lala Divesh, 山本 賢太, 中村 静, 高梨 克也, 河原 達也

    日本音響学会研究会発表会講演論文集 2020/09

  21. Evaluation on an attentive listening system of the autonomous android ERICA

    INOUE Koji, LALA Divesh, YAMAMOTO Kenta, NAKAMURA Shizuka, TAKANASHI Katsuya, KAWAHARA Tatsuya

    JSAI Technical Report, SIG-SLUD Vol. 87 2019/11/20

    Publisher: The Japanese Society for Artificial Intelligence
  22. Follow-up Question Generation for Job Interview Dialogue with Android ERICA

    HARA Kohei, INOUE Koji, LALA Divesh, YAMAMOTO Kenta, NAKAMURA Shizuka, TAKANASHI Katsuya, KAWAHARA Tatsuya

    JSAI Technical Report, SIG-SLUD Vol. 87 2019/11/20

    Publisher: The Japanese Society for Artificial Intelligence
  23. Criteria and Preliminary Analysis of Annotation of Focus for a Human-robot Interaction Corpus

    KASUGA Yuki, INOUE Koji, YAMAMOTO Kenta, TAKANASHI Katsuya, KAWAHARA Tatsuya

    JSAI Technical Report, SIG-SLUD Vol. 86 2019/08/25

    Publisher: The Japanese Society for Artificial Intelligence
  24. Corpus-based Analysis of Character Expression Model Using Dialogue Behaviors

    YAMAMOTO Kenta, INOUE Koji, NAKAMURA Shizuka, TAKANASHI Katsuya, KAWAHARA Tatsuya

    JSAI Technical Report, SIG-SLUD Vol. 85 p. 08-48 2019/03/01

    Publisher: The Japanese Society for Artificial Intelligence
  25. 対話のふるまい制御によるキャラクタ表現モデルと対話コーパスによる検証

    山本, 賢太, 井上, 昂治, 中村, 静, 高梨, 克也, 河原, 達也

    第81回全国大会講演論文集 Vol. 2019 No. 1 p. 363-364 2019/02/28

  26. Attentive Listening by Autonomous Android ERICA

    YAMAMOTO Kenta, INOUE Koji, LALA Divesh, NAKAMURA Shizuka, TAKANASHI Katsuya, KAWAHARA Tatsuya

    JSAI Technical Report, SIG-SLUD Vol. 84 2018/10/15

    Publisher: The Japanese Society for Artificial Intelligence
  27. 自律型アンドロイドのキャラクタ表現のための対話の振る舞い制御モデルの構築と評価

    山本, 賢太, 井上, 昂治, 中村, 静, 高梨, 克也, 河原, 達也

    第80回全国大会講演論文集 Vol. 2018 No. 1 p. 407-408 2018/03/13

  28. Investigation of a Character Representation Method by Dialogue Behavior Control Model of an Autonomous Android

    YAMAMOTO Kenta, INOUE Koji, NAKAMURA Shizuka, TAKANASHI Katsuya, KAWAHARA Tatsuya

    JSAI Technical Report, SIG-SLUD Vol. 81 2017/10/05

    Publisher: The Japanese Society for Artificial Intelligence
  29. 自律型アンドロイドのキャラクタ表現のための対話の振る舞い制御

    山本, 賢太, 井上, 昂治, 中村, 静, 高梨, 克也, 河原, 達也

    第79回全国大会講演論文集 Vol. 2017 No. 1 p. 237-238 2017/03/16