Weixiang Zhao

Weixiang Zhao

A Forth-year Ph.D student at Harbin Insititute of Technology

Weixiang Zhao 赵伟翔

Hello, I am a Ph.D. student at the Research Center for Social Computing and Information Retrieval (SCIR) at Harbin Institute of Technology (HIT), China. I am advised by Prof. Yanyan Zhao and Prof. Bing Qin. And I also collaborate closely with Prof. Wanxiang Che. My current research primarily focuses on the efficient, effective, and scalable post-training of large language models (LLMs), with particular attention to its applications in:

  • Continual Learning
  • Efficient (Adaptive) Reasoning
  • Safety Alignment
  • Multilingual Enhancement
  • Emotional Dialogue Systems

Education

Main Publications

Continual Learning

  1. Weixiang Zhao, Shilong Wang, Yulin Hu, Yanyan Zhao, Bing Qin, Xuanyu Zhang, Qing Yang, Dongliang Xu, Wanxiang Che. SAPT: A Shared Attention Framework for Parameter-Efficient Continual Learning of Large Language Models. ACL 2024 (Main). [paper] [repo]
  2. Weixiang Zhao, Zhuojun Li, Shilong Wang, Yang Wang, Yulin Hu, Yanyan Zhao, Chen Wei, Bing Qin. Both Matter: Enhancing the Emotional Intelligence of Large Language Models without Compromising the General Intelligence. ACL 2024 (Findings). [paper]
  3. Weixiang Zhao, Yulin Hu, Jiahe Guo, Xingyu Sui, Tongtong Wu, Yang Deng, Yanyan Zhao, Bing Qin, Wanxiang Che, Ting Liu. Lens: Rethinking Multilingual Enhancement for Large Language Models. arXiv:2503.17979. [paper] [repo]

Efficient (Adaptive) Reasoning

  1. Weixiang Zhao˟, Xingyu Sui˟, Jiahe Guo˟, Yulin Hu˟, Yang Deng, Yanyan Zhao, Bing Qin, Wanxiang Che, Tat-Seng Chua, Ting Liu. Trade-offs in Large Reasoning Models: An Empirical Analysis of Deliberative and Adaptive Reasoning over Foundational Capabilities. arXiv:2410.04407. [paper] [repo]

Safety Alignment

  1. Weixiang Zhao˟, Yulin Hu˟, Yang Deng, Jiahe Guo, Xingyu Sui, Xinyang Han, An Zhang, Yanyan Zhao, Bing Qin, Tat-Seng Chua, Ting Liu. Beware of Your Po! Measuring and Mitigating AI Safety Risks in Role-Play Fine-Tuning of LLMs. arXiv:2502.20968. [paper]
  2. Weixiang Zhao, Yulin Hu, Zhuojun Li, Yang Deng, Jiahe Guo, Xingyu Sui, Yanyan Zhao, Bing Qin, Tat-Seng Chua, Ting Liu. Towards Comprehensive Post Safety Alignment of Large Language Models via Safety Patching. arXiv:2405.13820. [paper]
  3. Weixiang Zhao, Yulin Hu, Xingyu Sui, Zhuojun Li, Yang Deng, Yanyan Zhao, Bing Qin, Wanxiang Che. The Gains Do not Make Up for the Losses: A Comprehensive Evaluation for Safety Alignment of Large Language Models via Machine Unlearning. Frontiers of Computer Science.

Multilingual Enhancement

  1. Weixiang Zhao, Yulin Hu, Jiahe Guo, Xingyu Sui, Tongtong Wu, Yang Deng, Yanyan Zhao, Bing Qin, Wanxiang Che, Ting Liu. Lens: Rethinking Multilingual Enhancement for Large Language Models. arXiv:2503.17979. [paper] [repo]

Emotional Dialogue Systems

  1. Weixiang Zhao˟, Xingyu Sui˟, Xinyang Han, Yang Deng, Yulin Hu, Jiahe Guo, Libo Qin, Qianyun Du, Shijin Wang, Yanyan Zhao, Bing Qin, Ting Liu. Chain of Strategy Optimization Makes Large Language Models Better Emotional Supporter. arXiv:2503.05362. [paper]
  2. Weixiang Zhao, Shilong Wang, Yanpeng Tong, Xin Lu, Zhuojun Li, Yanyan Zhao, Chenxue Wang, Tian Zheng, Bing Qin. A Parental Emotion Coaching Dialogue Assistant for Better Parent-Child Interaction. SCIENCE CHINA Information Sciences.
  3. Weixiang Zhao, Yanyan Zhao, Xin Lu, Bing Qin. Don’t Lose Yourself! Empathetic Response Generation via Explicit Self-Other Awareness. ACL 2023 (Findings). [paper] [repo]
  4. Weixiang Zhao, Yanyan Zhao, Shilong Wang, Bing Qin. TransESC: Smoothing Emotional Support Conversation via Turn-Level State Transition. ACL 2023 (Findings). [paper] [repo]
  5. Weixiang Zhao, Yanyan Zhao, Zhuojun Li, Bing Qin. Knowledge-Bridged Causal Interaction Network for Causal Emotion Entailment. AAAI 2023. [paper] [repo]
  6. Weixiang Zhao, Yanyan Zhao, Xin Lu, Bing Qin. CauAIN: Causal Aware Interaction Network for Emotion Recognition in Conversations. IJCAI 2022. [paper] [repo]
  7. Weixiang Zhao, Yanyan Zhao, Bing Qin. MuCDN: Mutual Conversational Detachment Network for Emotion Recognition in Multi-Party Conversations. COLING 2022. [paper] [repo]
  8. Weixiang Zhao, Yanyan Zhao, Xin Lu, Shilong Wang, Yanpeng Tong, Bing Qin. Is ChatGPT Equipped with Emotional Dialogue Capabilities? arXiv:2304.09582. [paper]
  9. Xin Lu, Weixiang Zhao, Yanyan Zhao, Bing Qin, Zhentao Zhang, Junjie Wen. A Topic-Enhanced Approach for Emotion Distribution Forecasting in Conversations. ICASSP 2023. [paper] [repo]
  10. Yanyan Zhao, Xin Lu, Weixiang Zhao, Yijian Tian, Bing Qin. Review of Emotional Dialogue Techniques. Ruan Jian Xue Bao/Journal of Software 2022 (in Chinese). [paper]
  11. Weixiang Zhao, Yanyan Zhao, Xin Lu, Bing Qin. An Aspect-Centralized Graph Convolutional Network for Aspect-based Sentiment Classification. NLPCC 2021. [paper] [repo]
  12. Wenjia Yi, Yanyan Zhao, Jianhua Yuan, Weixiang Zhao, Bing Qin Improving Affective Event Classification with Multi-Perspective Knowledge Injection. CCL 2023. [paper]

Experiences

  • Oct 2024 - Now. Visiting Student. National University of Singapore, Singapore. Supervisor: Prof. Tat-Seng Chua. Mentor: Prof. Yang Deng and Prof. An Zhang.
  • Nov 2023 - Sept 2024. Research Intern. Du Xiaoman (Beijing) Science Technology Co., Ltd, Beijing, China. Supervisor: Dr. Qing Yang.
  • Nov 2020 - Mar 2021. Intern. ByteDance, Beijing, China.
  • Jan 2020 - Feb 2020. Research Intern. Peer Logic Lab, North Carolina State University, Raleigh, The U.S. Supervisor: Dr. Yunkai Xiao and Prof. Ed Gehringer.

Selected Awards and Honors

  • National Scholarship, Harbin Institute of Technology, 2024
  • Outstanding Student Paper, Harbin Institute of Technology, 2022
  • Second-Class Fresh-PhD Fellowship, Harbin Institute of Technology, 2021
  • Excellent Thesis, Northeastern University, 2021
  • National Scholarship, Northeastern University, 2018&2019