About me

I am now a second year academic master student in THUCoAI group, Department of Computer Science and Technology in Tsinghua University, Beijing, China. My supervisor is Prof. Minlie Huang. My major research interests are about dialog systems, web search and reinforcement learning.

Education

  • Aug. 2019 - Jul. 2021 (expected) M.Eng., Department of Computer Science and Technology, Tsinghua University, Beijing, China.
  • Aug. 2015 - Jul. 2019 B.Eng., Department of Computer Science and Technology, Tsinghua University, Beijing, China.

Publications

(* indicates equal contribution)

Conference Papers

  • Peixin Huang, Xiang Zhao, Ryuichi Takanobu, Zhen Tan and Weidong Xiao. Joint Event Extraction with Hierarchical Policy Network. The 28th International Conference on Computational Linguistics. (COLING’20) [pdf] [bib]
  • Ryuichi Takanobu, Runze Liang and Minlie Huang. Multi-Agent Task-Oriented Dialog Policy Learning with Role-Aware Reward Decomposition. The 58th Annual Meeting of the Association for Computational Linguistics. (ACL’20) [pdf] [bib] [code]
  • Qi Zhu, Zheng Zhang, Yan Fang, Xiang Li, Ryuichi Takanobu, Jinchao Li, Baolin Peng, Jianfeng Gao, Xiaoyan Zhu and Minlie Huang. ConvLab-2: An Open-Source Toolkit for Building, Evaluating, and Diagnosing Dialogue Systems. (Demo) The 58th Annual Meeting of the Association for Computational Linguistics. (ACL’20) [pdf] [bib] [code]
  • Ryuichi Takanobu, Qi Zhu, Jinchao Li, Baolin Peng, Jianfeng Gao and Minlie Huang. Is Your Goal-Oriented Dialog Model Performing Really Well? Empirical Analysis of System-wise Evaluation. (Best Paper) The 21st Annual Meeting of the Special Interest Group on Discourse and Dialogue. (SIGDIAL’20) [pdf] [bib]
  • Ryuichi Takanobu, Hanlin Zhu and Minlie Huang. Guided Dialog Policy Learning: Reward Estimation for Multi-Domain Task-Oriented Dialog. (Oral) The 24th Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing. (EMNLP-IJCNLP’19) [pdf] [bib] [code]
  • Sungjin Lee, Qi Zhu, Ryuichi Takanobu, Zheng Zhang, Yaoqin Zhang, Xiang Li, Jinchao Li, Baolin Peng, Xiujun Li, Minlie Huang and Jianfeng Gao. ConvLab: Multi-Domain End-to-End Dialog System Platform. (Demo, Best Demo Paper Nominee) The 57th Annual Meeting of the Association for Computational Linguistics. (ACL’19) [pdf] [bib] [code]
  • Ryuichi Takanobu, Tao Zhuang, Minlie Huang, Jun Feng, Haihong Tang and Bo Zheng. Aggregating E-commerce Search Results from Heterogeneous Sources via Hierarchical Reinforcement Learning. The 28th International Conference on World Wide Web. (WWW’19) [pdf] [bib]
  • Ryuichi Takanobu*, Tianyang Zhang*, Jiexi Liu and Minlie Huang. A Hierarchical Framework for Relation Extraction with Reinforcement Learning. (Oral) The 33rd AAAI Conference on Artificial Intelligence. (AAAI’19) [pdf] [bib] [code]
  • Ryuichi Takanobu, Minlie Huang, Zhongzhou Zhao, Fenglin Li, Haiqing Chen, Liqiang Nie and Xiaoyan Zhu. Weakly Supervised Topic Segmentation and Labeling in Goal-Oriented Dialogues via Reinforcement Learning. The 27th International Joint Conference on Artificial Intelligence and the 23rd European Conference on Artificial Intelligence. (IJCAI-ECAI’18) [pdf] [bib] [code]

Journal Papers

  • Zheng Zhang, Ryuichi Takanobu, Qi Zhu, Minlie Huang and Xiaoyan Zhu. Recent Advances and Challenges in Task-Oriented Dialog Systems. Science China Technological Sciences, 2020. (SCTS’20) [pdf] [bib]
  • Lizi Liao, Ryuichi Takanobu, Yunshan Ma, Xun Yang, Minlie Huang and Tat-Seng Chua. Topic-Guided Conversational Recommender in Multiple Domains. Transactions on Knowledge and Data Engineering, 2020. (TKDE’20) [pdf] [bib] [code]

Workshop Papers and Preprints

  • Ryuichi Takanobu*, Wenchang Ma*, Minghao Tu and Minlie Huang. Bridging the Gap between Conversational Reasoning and Interactive Recommendation. [pdf] [bib] [code]
  • Ting Han, Ximing Liu, Ryuichi Takanobu, Yixin Lian, Chongxuan Huang, Wei Peng and Minlie Huang. MultiWOZ 2.3: A Multi-Domain Task-Oriented Dataset Enhanced with Annotation Corrections and Co-reference Annotation. [pdf] [bib] [data]
  • Jinchao Li, Qi Zhu, Lingxiao Luo, Lars Liden, Kaili Huang, Shahin Shayandeh, Runze Liang, Baolin Peng, Zheng Zhang, Swadheen Shukla, Ryuichi Takanobu, Minlie Huang and Jianfeng Gao. Multi-Domain Task Completion Dialog Challenge II at DSTC9. The 9th Dialog System Technology Challenge Workshop at the 35th AAAI Conference on Artificial Intelligence. (DSTC9@AAAI’21) [pdf] [bib]
  • Jinchao Li, Baolin Peng, Sungjin Lee, Jianfeng Gao, Ryuichi Takanobu, Qi Zhu, Minlie Huang, Hannes Schulz, Adam Atkinson and Mahmoud Adada. Multi-Domain Task-Completion Dialog Challenge at DSTC8. The 8th Dialog System Technology Challenge Workshop at the 34th AAAI Conference on Artificial Intelligence. (DSTC8@AAAI’20) [pdf] [bib]

Experience

  • Feb. 2021 - May 2021. Applied Scientist Intern, Alexa AI Team, Amazon, Seattle, WA, US.
  • Jun. 2020 - Sep. 2020. Research Intern, WeChat AI Team, Tencent, Beijing, China.
  • Jun. 2018 - Sep. 2018. Research Intern, Search Algorithm Team, Alibaba, Hangzhou, China.

Services

  • Organizer: DSTC 8 Track 1, DSTC 9 Track 2
  • PC Member: ACL 2020, EMNLP 2020, EACL 2021, NAACL 2021
  • Reviewer: IJCAI 2019, EMNLP 2019

Honors and Awards

  • SIGDIAL Best Paper, 2020
  • Alibaba Innovative Research Award, 2019
  • ACL Best Demo Paper Nominee, 2019
  • Excellent Undergraduate Thesis, Beijing, 2019 (Top-1 score in the Department of CST)
  • Excellent Graduate, Department of Computer Science and Technology, Tsinghua University, 2019
  • Sensetime Scholarship, 2018
  • Qualcomm Scholarship, 2018
  • Chinese Mathematical Olympiad (CMO), Second Prize, 2015