Nishimura Ryota 西村良太

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NISHIMURA Ryota 西村良太

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Researcher Number	50635878
Other IDs
Affiliation (Current)	2025: 豊橋技術科学大学, 工学(系)研究科(研究院), 准教授 2025: 慶應義塾大学, 理工学部(矢上), 特任助教
Affiliation (based on the past Project Information) *help	2019 – 2024: 徳島大学, 大学院社会産業理工学研究部(理工学域), 講師
Review Section/Research Field	Principal Investigator Basic Section 20020:Robotics and intelligent system-related Except Principal Investigator Medium-sized Section 61:Human informatics and related fields
Keywords	Principal Investigator 自然な対話 / 対話テンポ / ROS / リアルタイム制御 / 音声認識 / 深層学習 / 音声言語情報処理 / テンポ / タイミング / 音声対話システム … More Except Principal Investigator … More 音声認識 / 高齢者 / 雑談 / 距離 / 特徴量 / 音声 / 話者埋め込み / 音声特徴空間 / x-vector / 音声合成 / 話者空間 / マルチモーダル / マルチモーダル対話 / マルチモーダル対話システム / 認知力診断 / 音声対話 / 認知症傾向スクリーニング / 対話 / 高齢者音声 / 認知症傾向検出 / 質問誘導対話 / 雑談対話 / 高齢者音声認識 Less

高齢者を対象とした永続的に利用できるマルチモーダル対話システム基盤技術の構築
- Principal Investigator
  
  北岡教英
- Project Period (FY)
  2023 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 61:Human informatics and related fields
- Research Institution
  Toyohashi University of Technology
人間の感覚と整合する音声特徴空間の構築
- Principal Investigator
  
  北岡教英
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Challenging Research (Exploratory)
- Review Section
  
  Medium-sized Section 61:Human informatics and related fields
- Research Institution
  Toyohashi University of Technology
Spoken dialog system based on real-time control of dialogue tempo for smooth dialogPrincipal Investigator
- Principal Investigator
  
  NISHIMURA Ryota
- Project Period (FY)
  2019 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 20020:Robotics and intelligent system-related
- Research Institution
  The University of Tokushima
Development of base technologies for spoken dialog systems for elderlies
- Principal Investigator
  
  Kitaoka Norihide
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 61:Human informatics and related fields
- Research Institution
  Toyohashi University of Technology

All 2023 2022 2021 2020 2019

All Journal Article Presentation

[Journal Article] A new speech corpus of super-elderly Japanese for acoustic modeling2023
- Author(s)
  Fukuda Meiko、Nishimura Ryota、Nishizaki Hiromitsu、Horii Koharu、Iribe Yurie、Yamamoto Kazumasa、Kitaoka Norihide
- Journal Title
  
  Computer Speech & Language
  
  Volume: 77 Pages: 101424-101424
- DOI
  10.1016/j.csl.2022.101424
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K04311, KAKENHI-PROJECT-19H01125, KAKENHI-PROJECT-23K20729, KAKENHI-PROJECT-19K12022
[Journal Article] Multimodal dialog with photorealistic CG agent2022
- Author(s)
  北岡教英、西村良太、太田健吾
- Journal Title
  
  THE JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN
  
  Volume: 78 Issue: 5 Pages: 257-264
- DOI
  10.20697/jasj.78.5_257
- ISSN
  0369-4232, 2432-2040
- Year and Date
  2022-05-01
- Language
  Japanese
- Open Access
- Data Source
  KAKENHI-PROJECT-19K04311, KAKENHI-PUBLICLY-22H04863, KAKENHI-PUBLICLY-20H05562
[Journal Article] Input Utterance Complementation Method by Anaphora Resolution for Spontaneous Utterances on Spoken Dialog Systems2022
- Author(s)
  Nishimura Ryota、Mori Raita、Ohta Kengo、Kitaoka Norihide
- Journal Title
  
  Transactions of the Japanese Society for Artificial Intelligence
  
  Volume: 37 Issue: 3 Pages: IDS-F_1-13
- DOI
  10.1527/tjsai.37-3_IDS-F
- ISSN
  1346-0714, 1346-8030
- Year and Date
  2022-05-01
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K04311, KAKENHI-PROJECT-19H01125, KAKENHI-PUBLICLY-22H04863, KAKENHI-PUBLICLY-20H05562
[Journal Article] Response type selection for chat-like spoken dialog systems based on LSTM and multi-task learning2021
- Author(s)
  Ohta Kengo、Nishimura Ryota、Kitaoka Norihide
- Journal Title
  
  Speech Communication
  
  Volume: 133 Pages: 23-30
- DOI
  10.1016/j.specom.2021.07.003
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PUBLICLY-20H05562, KAKENHI-PROJECT-19H01125, KAKENHI-PROJECT-19K04311
[Journal Article] Example Phrase Adaptation Method for Customized, Example-Based Dialog System Using User Data and Distributed Word Representations2020
- Author(s)
  KITAOKA Norihide、SETO Eichi、NISHIMURA Ryota
- Journal Title
  
  IEICE Trans. Inf. & Syst.
  
  Volume: E103.D Issue: 11 Pages: 2332-2339
- DOI
  10.1587/transinf.2020EDP7066
- NAID
  130007933882
- ISSN
  0916-8532, 1745-1361
- Year and Date
  2020-11-01
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04311
[Journal Article] End-to-end recognition of streaming Japanese speech using CTC and local attention2020
- Author(s)
  Chen Jiahao、Nishimura Ryota、Kitaoka Norihide
- Journal Title
  
  APSIPA Transactions on Signal and Information Processing
  
  Volume: 9 Issue: 1 Pages: 1-7
- DOI
  10.1017/atsip.2020.23
- NAID
  120007045056
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K04311, KAKENHI-PROJECT-20H01716
[Presentation] 自発的発話認識のためのBERTによる非流暢文生成に基づく言語モデリング2023
- Author(s)
  堀井こはる, 太田健吾, 西村良太, 小川厚徳, 北岡教英
- Organizer
  日本音響学会講論集（2023春）（Web会議）
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] 割り込み発話にも対応可能なリアルタイム話者交替システム2023
- Author(s)
  杉山雅和, 太田健吾, 西村良太, 北岡教英
- Organizer
  日本音響学会講論集（2023春）（Web会議）
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] 深層学習による口唇情報を用いた雑音下での音声認識精度の改善2023
- Author(s)
  伊達龍斗, 太田健吾, 西村良太, 北岡教英
- Organizer
  日本音響学会講論集（2023春）（Web会議）
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] 自発的発話認識のためのBERTによる非流暢文生成に基づく言語モデリング2023
- Author(s)
  堀井こはる，太田健吾，西村良太，小川厚徳，北岡教英
- Organizer
  日本音響学会講演論文集
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] BERT による雑談対話話題拡張2022
- Author(s)
  福村考洋, 西村良太, 北岡教英
- Organizer
  令和4年度電気・電子・情報関係学会四国支部連合大会講演論文集（Web会議）
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] A corpus-based analysis of age-related change in the acoustic features of elderly to super elderly speech2022
- Author(s)
  Meiko Fukuda, Masakazu Sugiyama, Ryota Nishimura, Yurie Iribe, Kazumasa Yamamoto, Norihide Kitaoka
- Organizer
  Oriental-COCOSDA
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] タスク外音響情報を付加したEnd-to-End音声認識モデルの設計2022
- Author(s)
  森大輝，太田健吾，西村良太，小川厚徳, 北岡教英
- Organizer
  日本音響学会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] ドメイン外音響情報で補強した Encoder-Decoder 音声認識モデルの設計2022
- Author(s)
  森大輝, 太田健吾, 西村良太, 北岡教英
- Organizer
  日本音響学会講論集（2022年秋）（Web会議）
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] Elderly Conversational Speech Corpus with Cognitive Impairment Test and Pilot Dementia Detection Experiment Using Acoustic Characteristics of Speech in Japanese Dialects2022
- Author(s)
  Meiko Fukuda, Maina Umezawa, Ryota Nishimura, Yurie Iribe, Kazumasa Yamamoto, Norihide Kitaoka
- Organizer
  LREC
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] A Corpus-based Analysis of Age-related Changes in the Acoustic Features of Elderly to Super Elderly Speech2022
- Author(s)
  Fukuda, M., Sugiyama, M., Nishimura, R., Kitaoka, N
- Organizer
  The O-COCOSDA 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] 超高齢者コーパスとS-JNASを用いた高齢者音声の音響的特徴の分析2022
- Author(s)
  福田芽衣子，杉山雅和，西村良太，入部百合絵，山本一公，北岡教英
- Organizer
  日本音響学会秋季研究発表会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] 音声対話システムにおける対話破綻検出器の構築2022
- Author(s)
  鳥井章宏, 西村良太, 北岡教英
- Organizer
  令和4年度電気・電子・情報関係学会四国支部連合大会講演論文集（Web会議）
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] End-to-End 非流暢整形音声認識システムの対話音声による評価2022
- Author(s)
  堀井こはる, 福田芽衣子, 太田健吾, 西村良太, 小川厚徳, 北岡教英
- Organizer
  日本音響学会講論集（2022年秋）（Web会議）
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] 超高齢者コーパスとS-JNAS を用いた高齢者音声の音響的特徴の分析2022
- Author(s)
  福田芽衣子, 杉山雅和, 西村良太, 入部百合絵, 山本一公, 北岡教英
- Organizer
  日本音響学会講論集（2022年秋）（Web会議）
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] EMOtive A.I. "Saya"2022
- Author(s)
  大須賀晋, 田中五大, 鍋倉彩那, 中野涼太, 渡邊凌太, 石川友香, 石川晃之, 中村晃一, 藤井裕也, 堀内颯太, 東中竜一郎, 西村良太, 太田健吾, 北岡教英
- Organizer
  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
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] 非流暢ラベルを用いた言い淀み整形End-to-End音声認識2022
- Author(s)
  堀井こはる，福田芽衣子，太田健吾，西村良太，小川厚徳，北岡教英
- Organizer
  日本音響学会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] End-to-End Spontaneous Speech Recognition Using Disfluency Labeling2022
- Author(s)
  Koharu Horii, Meiko Fukuda, Kengo Ohta, Ryota Nishimura, Atsunori Ogawa, Norihide Kitaoka
- Organizer
  INTERSPEECH
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] Advanced language model fusion method for encoder-decoder model in Japanese speech recognition2021
- Author(s)
  Mori Daiki、Ohta Kengo、Ryota Nishimura、Ogawa Atsunori、Norihide Kitaoka
- Organizer
  APSIPA Annual Summit and Conference 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] ROSを利用したリアルタイム制御が可能な音声対話システムの構築2021
- Author(s)
  西村良太、森貴大、北岡教英
- Organizer
  日本音響学会研究発表会講演論文集
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] Encoder-Decoder音声認識モデルにおける暗黙的言語情報の置換法2021
- Author(s)
  森大輝，太田健吾，西村良太，小川厚徳，北岡教英
- Organizer
  日本音響学会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] タスク外音響情報を付加した End-to-End 音声認識モデルの設計2021
- Author(s)
  森大輝、太田健吾、西村良太、小川厚徳、北岡教英
- Organizer
  日本音響学会講演論文集
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] End-to-End Spontaneous Speech Recognition Using Hesitation Labeling2021
- Author(s)
  Horii Koharu、Meiko Fukuda、Ohta Kengo、Ryota Nishimura、Ogawa Atsunori、Norihide Kitaoka
- Organizer
  APSIPA Annual Summit and Conference 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] 言い淀みを考慮した自由発話のEnd-to-End音声認識2021
- Author(s)
  堀井こはる，福田芽衣子，太田健吾，西村良太，北岡教英
- Organizer
  日本音響学会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] アクセント句を考慮した日本語End-to-End音声合成サーバの構築2021
- Author(s)
  太田健吾、西村良太、北岡教英
- Organizer
  日本音響学会講論集（2021年春）
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] 非流暢ラベルを用いた言い淀み整形End-to-End音声認識2021
- Author(s)
  堀井こはる、福田芽衣子、太田健吾、西村良太、小川厚徳、北岡教英
- Organizer
  日本音響学会講演論文集
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] End-to-end spontaneous speech recognition using hesitation labeling2021
- Author(s)
  Koharu Horii, Meiko Fukuda, Kengo Ohta, Ryota Nishimura, Atsunori Ogawa, Norihide Kitaoka
- Organizer
  APSIPA ASC 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] Advanced language model fusion method for encoder-decoder model in Japanese speech2021
- Author(s)
  Daiki Mori, Kengo Ohta, Ryota Nishimura, Atsunori Ogawa, Norihide Kitaoka
- Organizer
  APSIPA ASC 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] 高齢者音声コーパス構築と音声認識への年齢・方言の影響の分析2020
- Author(s)
  福田芽衣子，西崎博光，入部百合絵，西村良太，北岡教英
- Organizer
  日本音響学会春季研究発表会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] Uni-directional LSTM と Local Attentionを用いたストリーミング音声認識,2020
- Author(s)
  陳家浩，西村良太，北岡教英
- Organizer
  日本音響学会春季研究発表会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] 自由発話に対応した照応解析を備えた音声対話システム2020
- Author(s)
  森雷太, 西村良太, 北岡教英
- Organizer
  日本音響学会
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] E2E Streaming Speech Recognition Using CTC and Local Attention2020
- Author(s)
  Chen Jiahao、Nishimura Ryota、Kitaoka Norihide
- Organizer
  Nonlinear Circuits, Communications and Signal Processing 2020 (NCSP'20)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] 自由発話に対応した照応解析を備えた音声対話システム2020
- Author(s)
  森雷太，西村良太，北岡教英
- Organizer
  日本音響学会春季研究発表会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] 書き言葉から話し言葉へのテキスト変換を用いた話し言葉音声認識用言語モデルの評価,2020
- Author(s)
  小橋優矢，西村良太，北岡教英
- Organizer
  日本音響学会春季研究発表会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] E2E Streaming Speech Recognition Using CTC and Local Attention2020
- Author(s)
  Jiahao Chen, Ryota Nishimura, Norihide Kitaoka
- Organizer
  NCSP'20
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] 書き言葉から話し言葉へのテキスト変換を用いた話し言葉音声認識用言語モデルの評価2020
- Author(s)
  小橋優矢, 西村良太, 北岡教英
- Organizer
  日本音響学会
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] Uni-directional LSTMとLocal Attentionを用いたストリーミング音声認識2020
- Author(s)
  陳家浩, 西村良太, 北岡教英
- Organizer
  日本音響学会
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] CTCとAttentionを用いたEnd-to-endストリーミング音声認識2019
- Author(s)
  陳家浩，西村良太，北岡教英
- Organizer
  日本音響学会秋季研究発表会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] Automatic conversion of written language into spoken language using a sequence-to-sequence model trained with a parallel corpus2019
- Author(s)
  Yuya Obashi, Ryota Nishimura, Norihide Kitaoka
- Organizer
  Oriental-COCOSDA2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] Sequence-to-Sequence model を用いた話し言葉音声認識用言語モデルのための書き言葉から話し言葉へのテキスト変換2019
- Author(s)
  小橋優矢，西村良太，北岡教英
- Organizer
  日本音響学会秋季研究発表会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] Sequence-to-Sequence modelを用いた話し言葉音声認識用言語モデルのための書き言葉から話し言葉へのテキスト変換2019
- Author(s)
  小橋優矢, 西村良太, 北岡教英
- Organizer
  日本音響学会
- Data Source
  KAKENHI-PROJECT-19K04311
[Presentation] 高齢者音声認識のための音声コーパス構築と方言への適応の効果2019
- Author(s)
  福田芽衣子，西村良太，西崎博光，入部百合絵，北岡教英
- Organizer
  日本音響学会秋季研究発表会
- Data Source
  KAKENHI-PROJECT-19H01125
[Presentation] A new corpus of elderly Japanese speech for acoustic modeling, and a preliminary investigation of dialect-dependent speech recognition2019
- Author(s)
  Meiko Fukuda, Ryota Nishimura, Hiromitsu Nishizaki, Yurie Iribe, Norihide Kitaoka
- Organizer
  Oriental-COCOSDA2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H01125

1. Kitaoka Norihide (10333501)

# of Collaborated Projects: 3 results

# of Collaborated Products: 22 results
2. 山本一公 (40324230)

# of Collaborated Projects: 3 results

# of Collaborated Products: 5 results
3. 西崎博光 (40362082)

# of Collaborated Projects: 3 results

# of Collaborated Products: 4 results
4. 入部百合絵 (40397500)

# of Collaborated Projects: 3 results

# of Collaborated Products: 6 results
5. 小林彰夫 (10741168)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
6. 東中竜一郎 (90396151)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
7. 太田健吾 (80712801)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
8. 宇津呂武仁 (90263433)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Nishimura Ryota 西村 良太

NISHIMURA Ryota 西村 良太

Research Projects

Research Products

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高齢者を対象とした永続的に利用できるマルチモーダル対話システム基盤技術の構築

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人間の感覚と整合する音声特徴空間の構築

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Spoken dialog system based on real-time control of dialogue tempo for smooth dialogPrincipal Investigator

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Development of base technologies for spoken dialog systems for elderlies

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[Journal Article] A new speech corpus of super-elderly Japanese for acoustic modeling2023

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[Journal Article] Multimodal dialog with photorealistic CG agent2022

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[Journal Article] Input Utterance Complementation Method by Anaphora Resolution for Spontaneous Utterances on Spoken Dialog Systems2022

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[Journal Article] Response type selection for chat-like spoken dialog systems based on LSTM and multi-task learning2021

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[Journal Article] Example Phrase Adaptation Method for Customized, Example-Based Dialog System Using User Data and Distributed Word Representations2020

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[Journal Article] End-to-end recognition of streaming Japanese speech using CTC and local attention2020

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[Presentation] 自発的発話認識のためのBERTによる非流暢文生成に基づく言語モデリング2023

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[Presentation] 割り込み発話にも対応可能なリアルタイム話者交替システム2023

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[Presentation] 深層学習による口唇情報を用いた雑音下での音声認識精度の改善2023

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Nishimura Ryota 西村良太

NISHIMURA Ryota 西村良太