Hello! I’m Yuhan Liu, currently a Postdoctoral Research Fellow at the Machine Learning Department of MBZUAI. I received my Ph.D. in Artificial Intelligence at Gaoling School of Artificial Intelligence, Renmin University of China, where I have been studying since 2021 under the supervision of Prof. Rui Yan. Prior to joining RUC, I earned my M.S. in Mathematics and B.S. in Automation from China University of Petroleum (Beijing), where I was mentored by Prof. Jianjun Liu. I also completed a minor in English Speech and Debate at CUPB, under the guidance of Prof. Jie Lian.

I am in the 2026 Fall job market and actively seeking faculty and postdoctoral opportunities. Feel free to reach out to me at liuyuhaning@gmail.com !

❤️ Research Interest

My research interests include LLMs, VLMs and Multi-Agent System in trustworthy and secure systems, focusing on:

Fake News and Social Systems: Investigating the use of LLMs in addressing the propagation of fake news and their role in social dynamics.
VLMs and Reasoning: Exploring complex reasoning paradigms in Vision-Language Models and their applications.
LLM-related Challenges: Exploring issues such as Hallucination, Hate Speech, Bias, and the alignment of LLM with societal norms and values.
Continual Learning: Addressing the challenges of continual learning in LLMs to ensure they can adapt and improve over time.

My contributions have been recognized in several top-tier international AI conferences.

🔥 News

2025.08: 🎉🎉 Three paper are accepted by EMNLP 2025 (Suzhou, China)!
2025.08: 🥳🥳🎉🎉 I joined MBZUAI as a Postdoctoral Research Fellow of Machine Learning.
2025.07: ✈️ Attending ACL 2025 in Vienna—looking forward to connecting!
2025.05: 🥳🥳🎉🎉🥳🥳🎉🎉 I have successfully defended my PhD thesis!
2025.05: 🎉🎉 Three paper are accepted by ACL 2025 (Vienna, Austria)!
2025.05: 🎉🎉 Two paper are accepted by SIGIR 2025 (Padua, Italy)!
2024.12: 🎉🎉 We won the Gold Medal in the Tencent Multi-Agent Application Competition (Rank 1/210)! Congratulations to my friend Xuyan!
2024.08: ✈️ Attending IJCAI 2024 in South Korea—looking forward to connecting!
2024.07: 🎉 Invited to serve as a Session Chair for IJCAI 2024 NLP Track (Jeju, South Korea)
2024.05: 🎉🎉 One paper is accepted by IJCAI 2024 (Oral) (Jeju, South Korea)!
2024.05: ✈️ Attending COLING 2024 in Italy—looking forward to connecting!
2024.05: ✈️ Attending WWW 2024 in Singapore—looking forward to connecting!
2024.02: 🎉🎉 One paper is accepted by COLING 2024 (Turin, Italy)
2024.02: 🎉 Selected as a delegate for the RUC-Yale “Artificial Intelligence, Emerging Technologies” International Forum.
2024.01: 🎉🎉 One paper is accepted by The Web Conference 2024 (Singapore)

📝 Publications

(* indicates co-corresponding author)

EMNLP 2025 The Stepwise Deception:Simulating the Evolution from True News to Fake News with LLM Agents, Yuhan Liu, Zirui Song, Juntian Zhang, Xiaoqing Zhang, Xiuying Chen, Rui Yan
SIGIR 2025 The Truth Becomes Clearer Through Debate! Multi-Agent Systems with Large Language Models Unmask Fake News, Yuhan Liu, Yuxuan Liu, Xiaoqing Zhang, Xiuying Chen, Rui Yan
EMNLP 2025 Injecting Domain-Specific Knowledge into Large Language Models: A Comprehensive Survey, Zirui Song, Bin Yan, Yuhan Liu, Miao Fang, Mingzhe Li, Rui Yan, Xiuying Chen
EMNLP 2025 Beyond Static Testbeds: An Interaction-Centric Agent Simulation Platform for Dynamic Recommender Systems, Song Jin, Juntian Zhang, Yuhan Liu*, Xun Zhang, Yufei Zhang, Guojun Yin, Fei Jiang, Wei Lin, Rui Yan*
ACL 2025 Weaving Context Across Images: Improving Vision-Language Models through Focus-Centric Visual Chains, Juntian Zhang, Chuanqi Cheng, Yuhan Liu*, Wei Liu, Jian Luan, Rui Yan*
ACL 2025 Thinking Before Running! Efficient Code Generation with Thorough Exploration and Optimal Refinement, Xiaoqing Zhang, Yuhan Liu*, Flood Sung, Xiuying Chen, Rui Yan*
ACL 2025 More is not always better? Enhancing Many-Shot In-Context Learning with Differentiated and Reweighting Objectives, Xiaoqing Zhang, Ang Lv, Yuhan Liu, Xiuying Chen, Rui Yan
SIGIR 2025 SAGraph: A Large-Scale Social Graph Dataset with Comprehensive Context for Influencer Selection in Marketing, Xiaoqing Zhang, Yuhan Liu, Jianzhou Wang, Zhenxing Hu, Xiuying Chen and Rui Yan
IJCAI 2024 From Skepticism to Acceptance: Simulating the Attitude Dynamics Toward Fake News, Yuhan Liu, Xiuying Chen, Xiaoqing Zhang, Xing Gao, Ji Zhang, Rui Yan (Oral, Human-Centred AI Track, 4% acceptance rate)
COLING 2024 IAD: In-Context Learning Ability Decoupler of Large Language Models in Meta-Training, Yuhan Liu, Xiuying Chen, Xing Gao, Ji Zhang, Rui Yan
The Web Confernce 2024 Bridging the Space Gap: Unifying Geometry Knowledge Graph Embedding with Optimal Transport, Yuhan Liu, Zelin Cao, Xing Gao, Ji Zhang, Rui Yan.
CCL 2023 Unleashing the power of large models: Exploring human-machine conversations, Yuhan Liu, Xiuying Chen, Rui Yan (Oral)
Arxiv Pastiche Novel Generation: Creating Fan Fiction You Love in Your Favorite Author’s Style, Zirui Song, Bin Yan, Xueran Han, Yuhan Liu, Rui Yan and Xiuying Chen
Arxiv A large-scale time-aware agents simulation for influencer selection in digital advertising campaigns, Xiaoqing Zhang, Xiuying Chen, Yuhan Liu, Jianzhou Wang, Zhenxing Hu, Rui Yan
Applied Mathematics and Computation A quasi fractional order gradient descent method with adaptive stepsize and its application in system identification, Jianjun Liu, Yuhan Liu, et al.
Information sciences Clustering based on grid and local density with priority-based expansion for multi-density data, Jianjun Liu, Yuhan Liu, et al.

🏅 Honors and Awards

2024 “Qiushi Academic-Dongliang” Academic Project Funding, RUC
2022,2023,2024 Merit Student, RUC
2017,2020,2025 Outstanding Graduate, Beijing
2019-2020 National Scholarship

⭐ Academic Services

Session Chair, IJCAI 2024 NLP Track (Jeju, Republic of Korea)
Reviewer for ACL, EMNLP, ICLR, WWW, ACL Rolling Review, ECAI
Program Committee Member, AAAI, IJCAI
Reviewer for Information Sciences, Financial Innovation

💬 Invited Talks

2025.05, True Yet False: Large Language Model-based Multi-Agent Systems for Enhanced Security, XiaMen University
2025.04, Large Language Model-Based Multi-Agent System for Fake News, School of Journalism and Communication, Renmin University of China
2024.08, From Skepticism to Acceptance: Simulating the Attitude Dynamics Toward Fake News, Microsoft Research Asia

💻 Internships and Work

2024.11 - 2025.06, MeiTuan, Beijing.
2022.09 - 2024.11, Alibaba Damo Academy, Beijing.
2020.07 - 2021.08, Xiaomi Tech, Beijing.
2019.06 - 2019.09, Sinovation Ventures, Beijing.
2019.03 - 2019.06, Lenovo Corporate Research, Beijing.
2018.05 - 2018.09, Tencent WeChat, Beijing.

📖 TA Experiences

2024 Spring, 2022 Spring, Natural Language Processing
2019 Fall, Applied Statistical Methods
2019 Spring, Optimization Algorithm
2019 Fall, 2017 Fall, Stochastic Process
2018 Fall, Advanced Algebra
2018 Spring, Advanced Mathematics

😃 Best Friends

Thanks to my best friends! Your help and encouragement are my greatest motivation, and I look forward to creating a better future with all of you!

Xiuying Chen, Assistant Professor at MBZUAI
Yichen Wu, Postdoctor at Harvard
Juntian Zhang, Master’s student at Renmin University of China
Ang Lv, Ph.D. Candidate at Renmin University of China and Interning at ByteDance Top Seed
Bowen Li, Ph.D. Candidate at Tsinghua University and visiting at University of Twente
Yining Sun, Ph.D. at Technische Universität Berlin