AO GUO / 郭 傲

AO GUO / 郭 傲

Assistant Professor at Nagoya University

About Me

My research is driven by a vision of a human–machine symbiotic society — a world in which robots and AI dialogue systems live alongside people as genuine partners, understanding each user as an individual and adapting to them as naturally as a human companion would.

Pursuing this vision, I work across several complementary directions, all centered on the same question: how can a machine truly understand a person, and act in a way that supports them?

  • Mobile robot guidance with hospitality — designing service robots that guide and assist users in real environments with the warmth and adaptability of a human host (my current JSPS Kakenhi project).
  • Personality-aware dialogue systems — making dialogue systems recognize each user’s personality and adapt how they speak and decide accordingly.
  • Understanding the user — modeling user emotion, stress, behavior, and intent from multimodal signals (speech, text, biosignals) to give machines the situational awareness they need.

I am based in Prof. Ryuichiro Higashinaka’s Lab at the Graduate School of Informatics, Nagoya University, where these threads come together in real-world human–machine interaction. I received my Ph.D. in Computer and Information Science from Hosei University in 2021, and worked as a Postdoctoral Researcher at Nagoya University from 2021 to 2026 before joining as a faculty member.

Contact: guo@i.nagoya-u.ac.jp  ·  Google Scholar  ·  researchmap  ·  ORCID

News

  • 2026-04  Started as Assistant Professor at the Graduate School of Informatics, Nagoya University
  • 2026-01  New paper “Subject-independent Bio-signal Fear Estimation in VR Horror Scenarios” accepted at ISASE 2026
  • 2025-08  Received Best Paper Nominee at SIGDIAL 2025
  • 2025-07  New paper “User Personality and its Influence on the Performance of Pipeline and End-to-end Task-oriented Dialogue Systems” published in Scientific Reports
  • 2025-04  Awarded JSPS Grant-in-Aid for Young Scientists (2025–2028) as Principal Investigator on Improving Hospitality of Mobile Dialogue Robots

Research Interests

  • Mobile robot guidance with hospitality — service robots that adapt to users in real environments
  • Personality-aware dialogue systems — adaptive dialogue strategies based on user personality
  • User state prediction — emotion, stress, attention, intent from multimodal signals
  • Persona character modeling — comprehensive modeling of individual user traits
  • Personalized generative AI — adapting large language models to individual users

Research Experience

  • Apr 2026 – Present   Assistant Professor, Department of Intelligent Systems, Graduate School of Informatics, Nagoya University
  • Sep 2024 – Present   Part-time Lecturer, Graduate School of Science and Engineering, Hosei University
  • Apr 2021 – Mar 2026   Postdoctoral Researcher, Graduate School of Informatics, Nagoya University

Education

  • Sep 2016 – Mar 2021   Ph.D. in Computer and Information Science, Hosei University
  • Sep 2014 – Jun 2015   M.S. in Computer and Information Science, Hosei University (Double Degree Program)
  • Sep 2013 – Mar 2016   M.S. in Software Engineering, Huazhong University of Science and Technology

Publications

Journals

  • [J8] Ao Guo, Ryu Hirai, Atsumoto Ohashi, Yuya Chiba, Yuiko Tsunomori, Ryuichiro Higashinaka. “User Personality and its Influence on the Performance of Pipeline and End-to-end Task-oriented Dialogue Systems,” Scientific Reports, 2025.
  • [J7] Ao Guo, Ryu Hirai, Atsumoto Ohashi, Yuya Chiba, Yuiko Tsunomori, Ryuichiro Higashinaka. “Personality Prediction from Task-oriented and Open-domain Human–machine Dialogues,” Scientific Reports, 2024. [Paper]
  • [J6] Jiaoman Du, Jiandong Zhou, Xiang Li, Lei Li, Ao Guo. “Integrated Self-driving Travel Scheme Planning,” International Journal of Production Economics, 2021. [Paper]
  • [J5] Ao Guo, Jianhua Ma, Guanqun Sun, Shunxiang Tan. “A Personal Character Model of Affect, Behavior and Cognition for Individual-like Research,” Computers & Electrical Engineering, 2020. [Paper]
  • [J4] Ao Guo, Jianhua Ma, Tan Shunxiang, Guanqun Sun. “From Affect, Behavior, and Cognition to Personality: An Integrated Personal Character Model for Individual-like Intelligent Artifacts,” World Wide Web Journal, 2019. [Paper]
  • [J3] Ao Guo, Jianhua Ma. “Archetype-based Modeling of Persona for Comprehensive Personality Computing from Personal Big Data,” Sensors, 2018. [Paper]
  • [J2] Ao Guo, Jianhua Ma. “Context-aware Scheduling in Personal Data Collection from Multiple Wearable Devices,” IEEE Access, 2017. [Paper]

International Conferences

  • [C27] Nozomi Tsunoda, Ao Guo, et al. “Subject-independent Bio-signal Fear Estimation in VR Horror Scenarios,” International Symposium on Affective Science and Engineering (ISASE), 2026.
  • [C26] Ao Guo, et al. “A Comparative Study of Human-operated and AI-driven Guidance with a Teleoperated Mobile Robot,” in Proc. of IJCNLP-AACL, 2025.
  • [C25] Ao Guo, et al. “Integrating Physiological, Speech, and Textual Information Toward Real-Time Recognition of Emotional Valence in Dialogue,” in Proc. of the 26th Annual Meeting of the Special Interest Group on Discourse and Dialogue (SIGDIAL), 2025. [Best Paper Nominee]
  • [C24] Kentaro Taki, Jianhua Ma, Ao Guo, Muxin Ma, Alex Qi. “Multilevel Classification of Drowsiness States Using ECG With Optimized Convolutional Neural Network,” in Proc. of the 16th IEEE Cyber, Physical and Social Computing (CPSCom), 2023. [Outstanding Paper Award]
  • [C23] Sanae Yamashita, Koji Inoue, Ao Guo, Shota Mochizuki, Tatsuya Kawahara, Ryuichiro Higashinaka. “RealPersonaChat: A Realistic Persona Chat Corpus with Interlocutors’ Own Personalities,” in Proc. of the 37th Pacific Asia Conference on Language, Information and Computation (PACLIC), 2023. [Paper]
  • [C22] Ao Guo, Walid Brahim, Jianhua Ma. “Influences of Mental Stress Level on Individual Identification using Wearable Biosensors,” in Proc. of the 8th IEEE Cyber Science and Technology Congress (CyberSciTech), 2023. [Paper]
  • [C21] Shinya Iizuka, Shota Mochizuki, Atsumoto Ohashi, Sanae Yamashita, Ao Guo, Ryuichiro Higashinaka. “Clarifying the Dialogue-Level Performance of GPT-3.5 and GPT-4 in Task-Oriented and Non-Task-Oriented Dialogue Systems,” AAAI Fall Symposium on AI for Human-Robot Interaction (AI-HRI), 2023. [Paper]
  • [C20] Ao Guo, Atsumoto Ohashi, Yuya Chiba, Yuiko Tsunomori, Ryu Hirai, Ryuichiro Higashinaka. “Personality-aware Natural Language Generation for Task-oriented Dialogue using Reinforcement Learning,” in Proc. of the 32nd IEEE Int’l Conf. on Robot and Human Interactive Communication (RO-MAN), 2023. [Paper]
  • [C19] Ryu Hirai, Ao Guo, Ryuichiro Higashinaka. “Applying Item Response Theory to Task-oriented Dialogue Systems for Accurately Determining User’s Task Success Ability,” in Proc. of the 24th Meeting of SIGDIAL, 2023. [Paper]
  • [C18] Ao Guo, Atsumoto Ohashi, Ryu Hirai, Yuya Chiba, Yuiko Tsunomori, Ryuichiro Higashinaka. “Influence of User Personality on Dialogue Task Performance: A Case Study using a Rule-based Dialogue System,” in Proc. of the 3rd Workshop on Natural Language Processing for Conversational AI (NLP4ConvAI), 2021. [Paper]
  • [C17] Hongyu Jiang, Ao Guo, Jianhua Ma. “Genre-based Emoji Usage Analysis and Prediction in Video Comments,” in Proc. of the 6th IEEE Cyber Science and Technology Congress, 2020. [Paper]
  • [C16] Ao Guo, Hongyu Jiang, Jianhua Ma. “Multi-scenario Fusion for More Accurate Classifications of Personal Characteristics,” in Proc. of the 6th IEEE Cyber Science and Technology Congress, 2020. [Paper]
  • [C15] Hongyu Jiang, Ao Guo, Jianhua Ma. “Automatic Prediction and Insertion of Multiple Emojis in Social Media Text,” in Proc. of the 13th IEEE CPSCom, 2020. [Paper]
  • [C14] Ao Guo, Jianhua Ma, Kevin I-Kai Wang. “Towards Integrative Personal Character Modeling using Multi-strategy Fusion across Scenarios and Periods,” in Proc. of the 5th IEEE Cyber Science and Technology Congress, 2019. [Best Student Paper Award] [Paper]
  • [C13] Ao Guo, Jianhua Ma, Kevin I-Kai Wang. “Integrated Modeling of Personal Character using Personal Big Data,” in Proc. of the 12th IEEE CPSCom, 2019. [Paper]
  • [C12] Shunxiang Tan, Ao Guo, Jianhua Ma, Shengbing Ren. “Personal Affective Trait Computing using Multiple Data Sources,” in Proc. of the 12th IEEE CPSCom, 2019. [Paper]
  • [C11] Guanqun Sun, Ao Guo, Jianhua Ma, Jianguo Wei. “Personal Trait Analysis using Word2vec based on User-generated Text,” in Proc. of the 5th IEEE Smart World Congress, 2019. [Paper]
  • [C10] Ao Guo, Jianhua Ma, Kevin I-Kai Wang. “From User Models to the Cyber-I Model: Approaches, Progresses and Issues,” in Proc. of the 4th IEEE Cyber Science and Technology Congress, 2018. [Paper]
  • [C9] Yen Tsan, Ao Guo, Jianhua Ma, Runhe Huang, Zhong Chen. “Incremental User Modeling of Online Activity for Cyber-I Growth with Successive Browsing Logs,” in Proc. of the 4th IEEE Cyber Science and Technology Congress, 2018. [Paper]
  • [C8] Ruiying Cai, Ao Guo, Jianhua Ma, Runhe Huang, Ruiyun Yu, Chen Yang. “Correlation Analyses between Personality Traits and Personal Behaviors under Specific Emotion States using Physiological Data from Wearable Devices,” in Proc. of the 4th IEEE Cyber Science and Technology Congress, 2018. [Paper]
  • [C7] Ao Guo, Jianhua Ma. “An Integrative and Precise Approach in Personality Computing based on Ontic Personae Modeling,” in Proc. of the 3rd IEEE Cyber Science and Technology Congress, 2018. [Paper]
  • [C6] Ruiying Cai, Ao Guo, Jianhua Ma, Runhe Huang. “Correlational Analyses among Personality Traits, Emotional Responses and Behavioral States using Physiological Data from Wearable Sensors,” in Proc. of the 10th Int’l Conf. on eHealth, Telemedicine, and Social Medicine (eTELEMED), 2018. [Paper]
  • [C5] Tongtong Xu, Ao Guo, Jianhua Ma, Kevin I-Kai Wang. “Feature-based Temporal Statistical Modeling of Data Streams from Multiple Wearable Devices,” in Proc. of the 3rd IEEE Cyber Science and Technology Congress, 2017. [Paper]
  • [C4] Ao Guo, Jianhua Ma. “Scenario-based Modeling of Ontic Personae for Automatic Personality Perception,” in Proc. of the 2017 IEEE Ubiquitous Intelligence and Computing (UIC), 2017. [Paper]
  • [C3] Tongtong Xu, Ao Guo, Jianhua Ma. “Analysis of Temporal Features in Data Streams from Multiple Wearable Devices,” in Proc. of the 3rd IEEE Int’l Conf. on Cybernetics (CYBCONF), 2017. [Paper]
  • [C2] Ao Guo, Jianhua Ma. “A Context-aware Scheduling Mechanism for Smartphone-based Personal Data Collection from Multiple Wearable Devices,” in Proc. of the 2016 IEEE CPSCom, 2016. [Best Paper Award] [Paper]
  • [C1] Ao Guo, Jianhua Ma. “A Smartphone-based System for Personal Data Management and Personality Analysis,” in Proc. of the 2015 IEEE Pervasive Intelligence and Computing, 2015. [Paper]

Domestic Conferences

  • [D10] 阪井瞭介, Jiang Shuting, 郭傲, 高道慎之介, 小川哲司, 東中竜一郎. 「一人称・三人称視点対話収録システムとエゴセントリック津軽弁音声対話コーパスの構築」言語処理学会 第32回年次大会 (NLP2026), 2026.
  • [D9] 江舒婷, 郭傲, 青木剛, 中西美和, 東中竜一郎. 「フォーカシング対話の収集とLLMを用いたEXPスケールの自動評定」言語処理学会 第32回年次大会 (NLP2026), 2026.
  • [D8] 植竹眞斗, 窪田智徳, 郭傲, 他. 「操作者と操作対象ロボットとの対話により長時間操作の退屈感を低減する遠隔操作システムの開発」人工知能学会全国大会 (JSAI2025), 2025.
  • [D7] 姜菁菁, 郭傲, 東中竜一郎. 「対話中の生体信号を用いた時系列モデルによる感情分類」人工知能学会全国大会 (JSAI2025), 2025.
  • [D6] 平井龍, 郭傲, 東中竜一郎. 「タスク指向型対話システムへの項目反応理論の適用によるユーザのタスク達成能力の推定」言語処理学会 第30回年次大会 (NLP2024), 2024.
  • [D5] 山下紗苗, 井上昂治, 郭傲, 望月翔太, 河原達也, 東中竜一郎. 「RealPersonaChat: 話者本人のペルソナと性格特性を含んだ雑談対話コーパス」言語処理学会 第30回年次大会 (NLP2024), 2024.
  • [D4] Zhiying Huang, Ao Guo, Jianhua Ma. 「DEAPデータセットに基づく畳み込みニューラルネットワークを用いたコンテンツ依存型と独立型の感情認識の比較研究」人工知能学会全国大会 (JSAI2024), 2024.
  • [D3] 姜菁菁, 郭傲, 東中竜一郎. 「異種センサを用いたマルチモーダル対話データの収集とセンサ情報と主観評価の関係分析」人工知能学会全国大会 (JSAI2024), 2024.
  • [D2] 滝健太郎, 郭傲, 馬建華. 「マルチモーダル生理信号データを用いた眠気状態の多レベル分類」人工知能学会全国大会 (JSAI2024), 2024.
  • [D1] 平井龍, 大橋厚元, 郭傲, 東中竜一郎. 「タスク指向型対話システムにおけるチュートリアルを用いた発話理解の改善」人工知能学会全国大会 (JSAI2022), 2022. [Paper]

Non-refereed

  • [N2] Ryu Hirai, Shinya Iizuka, Haruhisa Iseno, Ao Guo, Jingjing Jiang, Atsumoto Ohashi, Ryuichiro Higashinaka. “Team Flow at DRC2023,” Dialogue Robot Competition, 2023. [Paper]
  • [N1] Ryu Hirai, Atsumoto Ohashi, Ao Guo, Hideki Shiroma, Xulin Zhou, Yukihiko Tone, Shinya Iizuka, Ryuichiro Higashinaka. “Team Flow at DRC2022,” Dialogue Robot Competition, 2022. [Paper]

Honors and Awards

  • 2025   Best Paper Nominee, 26th Annual Meeting of SIGDIAL.
  • 2024   Outstanding Paper Award, 9th IEEE Int’l Conf. on Cyber Science and Technology (CyberSciTech).
  • 2023   Outstanding Paper Award, 16th IEEE Int’l Conf. on Cyber, Physical and Social Computing (CPSCom).
  • 2022   Outstanding PhD Dissertation Award, IEEE Technical Committee on Hyper-Intelligence.
  • 2020   Best Student Paper Award, 5th IEEE Int’l Conf. on Cyber Science and Technology.
  • 2017   Support Program for Researchers Traveling Abroad, International Information Science Foundation (IISF).
  • 2016   Best Paper Award, 9th IEEE Int’l Conf. on Cyber Physical and Social Computing.

Research Projects

  • 2025 – 2028   Principal Investigator — Research on Improving Hospitality of Mobile Dialogue Robots, Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for Scientific Research (Young Scientists).
  • 2014 – 2018   Co-investigator — Research and Development of a Cyber-I Open Service Platform, JSPS Grants-in-Aid for Scientific Research (C) (No. 26330350).

Invited Talks

  • 2025   Towards Enhanced Dialogue Systems: Integrating Personality Modeling, Real-time Emotion Recognition, and Hospitality with Generative AI, Muroran Institute of Technology.
  • 2024   Generative AI: Techniques and Applications with Large Language Models, IEEE CyberSciTech 2024.
  • 2024   Panelist, Challenges for Generative AI and Hyper Intelligence, IEEE CyberSciTech 2024.

Scientific Activities

Editorial / Committee Roles

  • TC Secretary, IEEE Technical Committee on Hyper-Intelligence (2021 – Present)

Conference Organization

  • Program Chair: IEEE CyberSciTech 2025; IEEE PICom 2025; GAI-HyperI 2025
  • Track Chair: IEEE PICom 2024
  • Publication Chair: IEEE CBDCom 2024; IEEE CyberSciTech 2024
  • Workshop & Special Session Chair: IEEE CyberSciTech 2022 – 2023
  • International & Industrial Liaison and Publicity Chair: IEEE CyberSciTech 2021
  • Program Committee: IEEE CyberSciTech 2017–2023; IEEE CPSCOM 2019; IEEE VTC 2018; Cyber 2019

Professional Memberships

IEEE (since 2016); Association for Computational Linguistics (ACL)

Teaching Experiences

  • 2026 – Present   Nagoya University, Faculty of Informatics
    • Computer Science Experiments a & b
    • Software Development Methods and Practice
    • Object-Oriented Programming and Practice 2
  • 2024 – Present   Hosei University, Graduate School of Science and Engineering
    • Generative AI using Large Language Models