Hi, I am Yuxuan Liu (刘宇轩), a Ph.D. student at the Hong Kong University of Science and Technology (HKUST), supervised by Prof. Yangqiu Song. Before joining HKUST, I received my Bachelor’s degree in Artificial Intelligence from Harbin Institute of Technology. I was also fortunate to intern at the Research Center for Social Computing and Information Retrieval (SCIR) under the guidance of Prof. Wanxiang Che.
📖 Education
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Hong Kong University of Science and Technology (HKUST) Ph.D. student in the Department of Computer Science and Engineering, supervised by Prof. Yangqiu Song.
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Harbin Institute of Technology Bachelor’s degree in the School of Future Technology (GPA: 92.89 / 100, Rank: 1 / 165).
🔬 Research Interests
I’m mainly interested in the research of Natural Language Processing.
- Large Language Models
- Recursive Self-Improvement
- Harness Engineering
🔥 News
- Oct 2026: Our paper JockeyBench: Evaluating LLM Agents on Horse-Racing Decision-Making is available on arXiv. [Paper]
- Oct 2026: Our paper Jev-ToM: Evaluating Theory of Mind in Typed Decision Models is available on arXiv. [Paper]
- Oct 2026: Our paper Jev-Guard: Fast Routing and Auditing Agent Actions over Editable Policy Trees is available on arXiv. [Paper]
- Oct 2026: Our paper RadixFlow: Filling Execution Bubbles in Prefix-Cached Hybrid LLM Serving is available on arXiv. [Paper]
- Oct 2026: Our paper Same Operation, Different Permission: Evaluating Whether Guardrails Honor Authorization is available on arXiv. [Paper]
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- Oct 2026: Our paper SkillHorizon: Constructing Long-Horizon Agent Tasks through Skill Composition is available on arXiv. [Paper]
- Oct 2026: Our paper You Changed Your Mind, The Model Didn’t: Demystifying Intent in Multi-Turn Dialogue is available on arXiv. [Paper]
- Oct 2026: Our paper SkillScriptBench: Benchmarking Self-Evolution of Executable Agent Skill Packages Beyond Markdown is available on arXiv. [Paper]
- Sep 2026: Our paper CorrGRPO: Correlation-Normalized GRPO for Multi-Reward Learning is available on arXiv. [Paper]
- Sep 2026: Our paper SoFT: Soft Targets for Generalizable LLM Fine-Tuning is available on arXiv. [Paper]
- Aug 2026: Our paper SkillRevise: Improving LLM-Authored Agent Skills via Trace-Conditioned Skill Revision has been accepted to Findings of EMNLP 2026. [Paper] [Code]
- Aug 2026: Our paper MultivationBench: A Benchmark for Multimodal Sequential Motivation Reasoning has been accepted to Findings of EMNLP 2026. [Paper]
- Aug 2026: Our paper Co-Evolution in Agentic Systems: Toward Self-Directed Evolution Beyond Human Design is available on arXiv. [Paper]
- Aug 2026: Our paper Can Language Models Imagine Without Seeing? Ekphrasis: Measuring Visual Creative Ideation in Text-Only LLMs is available on arXiv. [Paper]
- Aug 2026: Our paper Rethinking Self-Evolving Agent Skills: Feedback Dynamics over Multiple Rounds is available on arXiv. [Paper] [Code]
- Jul 2026: Our paper RLPF: Reinforcement Learning from Performance Feedback for Code Generation is available on arXiv. [Paper]
📝 Publications
First-Author Publications
Yuxuan Liu, Zhaochen Su, Hangyu Guo, Shijue Huang, Zhixiong Zhang, Kawai Chung, Zhongwei Xie, Tianshi Zheng, Wei Fan, Qing Zong, Haochen Shi, Baixuan Xu, Haoran Li, Yangqiu Song
arXiv preprint, 2026
Yuxuan Liu, Haoran Li, Yuhao Zhang, Jiahe Guo, Hongyu Luo, Wenbin Hu, Huihao Jing, Kawai Chung, Junle Chen, Changxuan Fan, Qing Zong, Lingyun Xie, Yangqiu Song
arXiv preprint, 2026
Yuxuan Liu, Zhaochen Su, Yuhao Zhang, Jiahe Guo, Zhongwei Xie, Huihao Jing, Lingyun Xie, Qing Zong, Yauwai Yim, Zhixiong Zhang, Haoran Li, Yangqiu Song
arXiv preprint, 2026
Yuxuan Liu, Zhaochen Su, Lingyun Xie, Yuhao Zhang, Qing Zong, Jiahe Guo, Zhongwei Xie, Yiyan Ji, Yauwai Yim, Hongyu Luo, Xiyu Ren, Chenyu Ruan, Haoran Li, Yangqiu Song
Findings of EMNLP, 2026
Non-First-Author Publications
Zhongwei Xie, Xingsu Li, Jingqiao Yu, Zihao Wang, Hong ChiTat, Zhaowei Wang, Weizhi Du, Yuxuan Liu, Huihao Jing, Jiaxin Bai, Yangqiu Song
arXiv preprint, 2026
Kawai Chung, Chunkit Chan, Yuxuan Liu, Yauwai Yim, Xi Yang, Wenbin Hu, Huihao Jing, Chiu Yeung Tang, Changxuan Fan, Ki Sen Hung, Tsun On Kwok, Haoran Li
arXiv preprint, 2026
Wenbin Hu, Huihao Jing, Haochen Shi, Yuxuan Liu, Changxuan Fan, Sirui Zhang, Kawai Chung, Hanyu Yang, Zhenhuan Wang, Ziyi Chen, Haoran Li, Yangqiu Song
arXiv preprint, 2026
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Huihao Jing, Wenbin Hu, Shaojin Chen, Haochen Shi, Haoyu Huang, Sirui Zhang, Yuxuan Liu, Zhongwei Xie, Haoran Li
arXiv preprint, 2026
Huihao Jing, Shaojin Chen, Wenbin Hu, Yuxuan Liu, Haochen Shi, Zhongwei Xie, Haoran Li, Yangqiu Song
arXiv preprint, 2026
Junle Chen, Wei Chen, Zhengjun Huang, Zhoujin Tian, Yuxuan Liu, Kai Wang, Rui Chen, Xiaofang Zhou
arXiv preprint, 2026
Wenbin Hu, Huihao Jing, Haochen Shi, Yuxuan Liu, Haoran Li, Yangqiu Song
arXiv preprint, 2026
Huihao Jing, Wenbin Hu, Shaojin Chen, Haochen Shi, Zhongwei Xie, Guijia Zhang, Yuxuan Liu, Haoyu Huang, Haoran Li, Yangqiu Song
arXiv preprint, 2026
Qing Zong, Jiayu Liu, Junhao Shen, Zecong Tang, Linsi Wu, Yuxuan Liu, Rui Wang, Zhaowei Wang, Weiqi Wang, Cheng Qian, Xiusi Chen, Yangqiu Song
arXiv preprint, 2026
Hongyu Luo, He Wang, Huihao Jing, Hong Ting Tsang, Yuxuan Liu, Wuganjing Song, Yauwai Yim, Chunyang Li, Yangqiu Song
arXiv preprint, 2026
Huihao Jing, Haozhe Cui, Wenbin Hu, Shaojin Chen, Haochen Shi, Changxuan Fan, Yuxuan Liu, Hanyu Yang, Sirui Zhang, Ziyi Chen, Haoran Li, Yangqiu Song
arXiv preprint, 2026
Kawai Chung, Chunkit Chan, Yauwai Yim, Yuxuan Liu, Haochen Shi, Weiqi Wang, Qing Zong, Tianshi Zheng, Yixuan Fu, Kai Chung Wong, Hao Liang, Yifan Gao, Xi Yang, Janet Hui-wen Hsiao, Yangqiu Song
Findings of EMNLP, 2026
🏆 Honors & Awards
- 2025.08 RedBird PhD Award Program
- 2024.06 Top Ten Academic Tutoring Volunteers at Harbin Institute of Technology (Ranked 1st)
- 2024.05 Meritorious Winner, Interdisciplinary Contest in Modeling
- 2024.03 Song Qingling Future Scholarship
- 2023.12 Shenzhen Stock Exchange Scholarship
- 2023.11 First Prize, China Undergraduate Mathematical Contest in Modeling
- 2023.10 Outstanding Student in Heilongjiang Province
- 2023.10 Outstanding Student Model at Harbin Institute of Technology
- 2022.10 National Scholarship (Ranked 1st)
- 2022.07 First Prize, National University Students’ Opt-Sci-Tech Competition
- 2022.05 Top Ten Learning Stars of the Fundamental Division at Harbin Institute of Technology
- Multiple The Chinese Mathematics Competitions (Second in the same graduating class at HIT)
- Multiple First-class People’s Scholarship in China * 6 (Top 3%)
💻 Experience
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Center on Machine Learning Research Research intern, advised by Prof. Wangmeng Zuo.
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Research Center for Social Computing and Information Retrieval (SCIR), Harbin Institute of Technology Research intern, advised by Prof. Wanxiang Che.