About me

I am a second-year Ph.D. student in Computer Science at Institute of Computing Technology, Chinese Academy of Sciences, advised by Prof. Shenghua Liu and Yiwei Wang. I am a member of CAS Key Laboratory of AI Security. My research interests lie in the general area of trustworthy large language models.

I completed a research internship at MSRA GenAI group and subsequently interned with Qwen Team, where I worked on pretraining foundation models and served as a core contributor to the latest Qwen backbone model.

I am currently visiting the Language Technologies Institute (LTI), Carnegie Mellon University (CMU) this year for a one-year research stay under the supervision of Prof. Chenyan Xiong.

🔥 News

• 2025-05: Five papesr accepted to ACL 2025
• 2025-05: One paper accepted to ICML 2025
• 2025-01: Three papers accepted to ICLR 2025, WWW 2025, and NAACL 2025.
• 2024-11: One paper accepted to COLING 2025
• 2024-09: Two papers accepted to EMNLP 2024
• 2024-05: One paper accepted to ACL 2024

📚 Publications

2025

• Lingrui Mei, Jiayu Yao, Yuyao Ge, Yiwei Wang, Baolong Bi, Yujun Cai, Jiazhi Liu, Mingyu Li, Zhong-Zhi Li, Duzhen Zhang, Chenlin Zhou, Jiayi Mao, Tianze Xia, Jiafeng Guo, Shenghua Liu. A Survey of Context Engineering for Large Language Models [arxiv] [paper]

• Baolong Bi, Shenghua Liu, Xingzhang Ren, Dayiheng Liu, Junyang Lin, Yiwei Wang, Lingrui Mei, Junfeng Fang, Jiafeng Guo, Xueqi Cheng. RefineX: Learning to Refine Pre-training Data at Scale from Expert-Guided Programs [arxiv] [paper]

• Juan Chen, Baolong Bi^*, Wei Zhang, Jingyan Sui, Xiaofei Zhu, Yuanzhuo Wang, Lingrui Mei, Shenghua Liu. Rethinking All Evidence: Enhancing Trustworthy Retrieval-Augmented Generation via Conflict-Driven Summarization [arxiv] [paper]

• Jiayu Yao, Shenghua Liu, Yiwei Wang, Lingrui Mei, Baolong Bi, Yuyao Ge, Zhecheng Li, Xueqi Cheng. Who is in the Spotlight: The Hidden Bias Undermining Multimodal Retrieval-Augmented Generation [arxiv] [paper]

• Zehao Li, Hao Jiang, Yujun Cai, Jianing Chen, Baolong Bi, Shuqin Gao, Honglong Zhao, Yiwei Wang, Tianlu Mao, Zhaoqi Wang. STDR: Spatio-Temporal Decoupling for Real-Time Dynamic Scene Rendering. [arxiv] [paper]

• Zhong-Zhi Li, Duzhen Zhang, Ming-Liang Zhang, Jiaxin Zhang, Zengyan Liu, Yuxuan Yao, Haotian Xu, Junhao Zheng, Pei-Jie Wang, Xiuyi Chen, Yingying Zhang, Fei Yin, Jiahua Dong, Zhiwei Li, BaoLong Bi, Ling-Rui Mei, Junfeng Fang, Zhijiang Guo, Le Song, Cheng-Lin Liu. From System 1 to System 2: A Survey of Reasoning Large Language Models. [arxiv] [paper] [github]

• Cheng Wang, Yue Liu, Baolong Bi, Duzhen Zhang, Zhongzhi Li, Junfeng Fang. Safety in Large Reasoning Models: A Survey. [arxiv] [paper]

• Lingrui Mei, Shenghua Liu, Yiwei Wang, Baolong Bi, Yuyao Ge, Jun Wan, Yurong Wu, Xueqi Cheng. a1: Steep Test-time Scaling Law via Environment Augmented Generation. [arxiv] [paper]

• Yilong Xu, Jinhua Gao, Xiaoming Yu, Yuanhai Xue, Baolong Bi, Huawei Shen, Xueqi Cheng. Training a Utility-based Retriever Through Shared Context Attribution for Retrieval-Augmented Language Models. [arxiv] [paper]

• Yue Liu, Jiaying Wu, Yufei He, Hongcheng Gao, Hongyu Chen, Baolong Bi, Jiaheng Zhang, Zhiqi Huang, Bryan Hooi. Efficient Inference for Large Reasoning Models: A Survey. [arxiv] [paper]

• Hongcheng Gao, Jiashu Qu, Jingyi Tang, Baolong Bi, Yue Liu, Hongyu Chen, Li Liang, Li Su, Qingming Huang. Exploring Hallucination of Large Multimodal Models in Video Understanding: Benchmark, Analysis and Mitigation. [arxiv] paper [huggingface] [github]

• Yuyao Ge, Shenghua Liu, Yiwei Wang, Lingrui Mei, Lizhe Chen, Baolong Bi, Xueqi Cheng. Innate Reasoning is Not Enough: In-Context Learning Enhances Reasoning Large Language Models with Less Overthinking. [arxiv] [paper]

• Baolong Bi, Shenghua Liu, Yiwei Wang, Yilong Xu, Junfeng Fang, Lingrui Mei, Xueqi Cheng. Parameters vs. Context: Fine-Grained Control of Knowledge Reliance in Language Models. [arxiv] [paper] [github]

• Shiyu Ni, Keping Bi, Jiafeng Guo, Lulu Yu, Baolong Bi, Xueqi Cheng. Towards Fully Exploiting LLM Internal States to Enhance Knowledge Boundary Perception. [arxiv] [paper]

• Zherui Li, Houcheng Jiang, Hao Chen, Baolong Bi, Zhenhong Zhou, Fei Sun, Junfeng Fang, Xiang Wang. Reinforced Lifelong Editing for Language Models. [arxiv] [paper]

• Tianyu Zhang, Junfeng Fang, Houcheng Jiang, Baolong Bi, Xiang Wang, Xiangnan He. Explainable and Efficient Editing for Large Language Models. [arxiv] [paper]

2024

• Baolong Bi, Shaohan Huang, Yiwei Wang, Tianchi Yang, Zihan Zhang, Haizhen Huang, Lingrui Mei, Junfeng Fang, Zehao Li, Furu Wei. Context-DPO: Aligning Language Models for Context-Faithfulness. [page] [arxiv] [paper]

• Zehao Li, Wenwei Han, Yujun Cai, Hao Jiang, Baolong Bi, Shuqin Gao, Honglong Zhao, Zhaoqi Wang. GradiSeg: Gradient-Guided Gaussian Segmentation with Enhanced 3D Boundary Precision. [arxiv] [paper]

• Yuyao Ge, Shenghua Liu, Baolong Bi, Yiwei Wang, Lingrui Mei, Wenjie Feng, Lizhe Chen, Xueqi Cheng. Can Graph Descriptive Order Affect Solving Graph Problems with LLMs?. [arxiv] [paper]

• Lingrui Mei, Shenghua Liu, Yiwei Wang, Baolong Bi, Ruibin Yuan, Xueqi Cheng. HiddenGuard: Fine-Grained Safe Generation with Specialized Representation Router. [arxiv] [paper]

• Baolong Bi, Shenghua Liu, Yiwei Wang, Lingrui Mei, Hongcheng Gao, Junfeng Fang, Xueqi Cheng. StruEdit: Structured Outputs Enable the Fast and Accurate Knowledge Editing for Large Language Models. [arxiv] [paper]

• Yilong Xu, Jinhua Gao, Xiaoming Yu, Baolong Bi, Huawei Shen, Xueqi Cheng. ALiiCE: Evaluating Positional Fine-grained Citation Generation. [arxiv] [paper]

• Baolong Bi, Shenghua Liu, Yiwei Wang, Lingrui Mei, Hongcheng Gao, Yilong Xu, Xueqi Cheng. Adaptive Token Biaser: Knowledge Editing via Biasing Key Entities. [arxiv] [paper]

• Lingrui Mei, Shenghua Liu, Yiwei Wang, Baolong Bi, Jiayi Mao, Xueqi Cheng. “Not Aligned” is Not “Malicious”: Being Careful about Hallucinations of Large Language Models’ Jailbreak. [arxiv] [paper]

• Baolong Bi, Shenghua Liu, Lingrui Mei, Yiwei Wang, Pengliang Ji, Xueqi Cheng. Decoding by Contrasting Knowledge: Enhancing LLMs’ Confidence on Edited Facts. [page] [arxiv] [paper]

• Baolong Bi, Shenghua Liu, Yiwei Wang, Lingrui Mei, Xueqi Cheng. Is Factuality Enhancement a Free Lunch For LLMs? Better Factuality Can Lead to Worse Context-Faithfulness. [arxiv] [paper]

• Baolong Bi, Shenghua Liu, Yiwei Wang, Lingrui Mei, Xueqi Cheng. LPNL: Scalable Link Prediction with Large Language Models. [arxiv] [paper]

• Lingrui Mei, Shenghua Liu, Yiwei Wang, Baolong Bi, Xueqi Cheng. SLANG: New Concept Comprehension of Large Language Models. [arxiv] [paper]

📝 Services

• Reviewer for
  • International Conference on Learning Representations (ICLR) 2025
  • Annual Meeting of the Association for Computational Linguistics (ACL) 2024, 2025 (ARR 2024 December; ARR 2025 February, May)
  • Conference on Empirical Language Modeling (COLM) 2025
  • Conference on Neural Information Processing Systems (NeurIPS) 2025
  • Conference on NeurIPS Datasets and Benchmarks Track 2025
  • ACM International Conference on Information and Knowledge Management (CIKM) 2025

🎓 Education

• Institute of Computing Technology, Chinese Academy of Sciences
  Ph.D. in Computer Science (2023 - present)
  Advisor: Prof. Shenghua Liu and Yiwei Wang

• Chongqing University
  B.E. in Computer Science (Excellent) (2019 - 2023)

🏆 Honors and Awards

• 2021 Bronze medal in ICPC China National Programming Contest
• 2020 The first prize of the National College Student Mathematical Modeling Contest
• 2020 First prize in Chongqing University Student Programming Competition
• 2017 First prize in the national youth informatics competition
• Advanced Individual in Innovation and Entrepreneurship of Chongqing University
• Ministry of Education-Huawei Smart Base “Future Star”
• Chongqing University First Class Scholarship