Jiexi Liu

Researcher, Alibaba Group

Joined

December 2019

Names

Jiexi Liu

Emails

****@163.com (Confirmed)

Personal Links

Semantic Scholar

Career & Education History

Researcher

Alibaba Group (alibaba-inc.com)

2022 – Present

MS student

Department of Computer Science and Technology, Tsinghua University, Tsinghua University (tsinghua.edu.cn)

2019 – 2022

Undergrad student

Department of Computer Science and Technology, Tsinghua University, Tsinghua University (tsinghua.edu.cn)

2015 – 2019

Advisors, Relations & Conflicts

PhD Advisor

2017 – 2022

Expertise

Dialog system

,

robustness evaluation

2017 – 2022

Publications

Strata-Sword: A Hierarchical Safety Evaluation towards LLMs based on Reasoning Complexity of Jailbreak Instructions
Shiji Zhao, Ranjie Duan, Jiexi Liu, Xiaojun Jia, Fengxiang Wang, Ruoxi Cheng, Yong xie, Cheng Wei, Yitong Sun, Chang Liu, Qing Guo, Jialing Tao, Hui Xue, Xingxing Wei
- Submitted to ICLR 2026
- Readers: Everyone
Enhancing Adversarial Robustness of Vision Language Models via Adversarial Mixture Prompt Tuning
Shiji Zhao, Qihui Zhu, Shukun Xiong, Shouwei Ruan, Maoxun Yuan, Jialing Tao, Jiexi Liu, Ranjie Duan, Jie Zhang, Jie Zhang, Xingxing Wei
- ICLR 2026 Conference Withdrawn Submission
- Readers: Everyone
Inverse Reinforcement Learning with Dynamic Reward Scaling for LLM Alignment
Ruoxi Cheng, Hao-Xuan Ma, Weixin Wang, Ranjie Duan, Jiexi Liu, Xiaoshuang Jia, Simeng Qin, Xiaochun Cao, Yang Liu, Xiaojun Jia
- ICLR 2026 Poster
- Readers: Everyone
Robustness Testing of Language Understanding in Task-Oriented Dialog
Jiexi Liu, Ryuichi Takanobu, Jiaxin Wen, Dazhen Wan, Hongguang Li, Weiran Nie, Cheng Li, Wei Peng, Minlie Huang
- 2021 (modified: 12 Nov 2021)
- ACL/IJCNLP (1) 2021
- Readers: Everyone
A Hierarchical Framework for Relation Extraction with Reinforcement Learning
Ryuichi Takanobu, Tianyang Zhang, Jiexi Liu, Minlie Huang
- 2019 (modified: 12 Nov 2021)
- AAAI 2019
- Readers: Everyone

Co-Authors

View all 33 co-authors