自然语言处理，大语言模型，信息检索

何苯博士, 教授，博士生导师。2010年8月起,就职于中国科学院大学 计算机科学与技术学院。研究方向包括自然语言处理，信息检索

研究方向：自然语言处理、大语言模型，信息检索

081203-计算机应用技术
081202-计算机软件与理论
085400-电子信息

自然语言处理，信息检索
深度学习，智能信息处理
人工智能

2002-10--2007-07   英国格拉斯哥大学   博士 (Ph. D.)
1997-09--2001-06   北京航空航天大学   工学学士 (B. Eng.)

   

2018-11~现在, 中国科学院大学, 教授
2010-08~2018-11,中国科学院大学, 副教授
2009-07~2010-07,加拿大约克大学, 博士后研究员
2007-08~2009-07,英国格拉斯哥大学, 科研助理

• Information Processing & Management, Associate Editor (副主编)
• ACL Rolling Review, Area Chair

现代信息检索
矩阵在信息处理中的应用
矩阵分析与应用
本科生毕业设计（计算机科学与技术）
文献阅读-软件工程专业 1班
文献阅读
社会计算前沿问题导论
信息检索导论
社会计算
现代信息检索专题讨论
文献阅读课
社会计算专题
文献阅读课(限信息学院学生选修,全年计1学分)

已在信息检索、自然语言处理等领域发表多篇论文。DBLP有一个论文清单，但有几篇是同名的作者。Google Scholar引用5000+次，H-index=34

• Xinran Chen, Ben He, Xuanang Chen, Le Sun: Not All Terms Matter: Recall-Oriented Adaptive Learning for PLM-aided Query Expansion in Open-Domain Question Answering. ACL (1) 2025: 22139-22151
• Ruoxi Xu, Yunjie Ji, Boxi Cao, Yaojie Lu, Hongyu Lin, Xianpei Han, Ben He, Yingfei Sun, Xiangang Li, Le Sun:Memorizing is Not Enough: Deep Knowledge Injection Through Reasoning. ACL (1) 2025: 28682-28693
• Xueru Wen, Jie Lou, Zichao Li, Yaojie Lu, XingYu, Yuqiu Ji, Guohai Xu, Hongyu Lin, Ben He, Xianpei Han, Le Sun, Debing Zhang: Cheems: A Practical Guidance for Building and Evaluating Chinese Reward Models from Scratch. ACL (1) 2025: 15187-15211
• Ruiyang Xu, Jialun Cao, Yaojie Lu, Ming Wen, Hongyu Lin, Xianpei Han, Ben He, Shing-Chi Cheung, Le Sun: CRUXEVAL-X: A Benchmark for Multilingual Code Reasoning, Understanding and Execution. ACL (1) 2025: 23762-23779
• Xinran Chen, Yuchen Li, Hengyi Cai, Zhuoran Ma, Xuanang Chen, Haoyi Xiong, Shuaiqiang Wang, Ben He, Le Sun, Dawei Yin: Multi-Agent Proactive Information Seeking with Adaptive LLM Orchestration for Non-Factoid Question Answering. KDD (2) 2025: 4341-4352
• Yiran Wang, Ben He, Xuanang Chen, Le Sun: Can LLMs Clarify? Investigation and Enhancement of Large Language Models on Argument Claim Optimization. COLING 2025: 4066-4077
• Xueru Wen, Jie Lou, Yaojie Lu, Hongyu Lin, XingYu, Xinyu Lu, Ben He, Xianpei Han, Debing Zhang, Le Sun: Rethinking Reward Model Evaluation: Are We Barking up the Wrong Tree? ICLR 2025
• Xiaoyang Chen, Ben He, Hongyu Lin, Xianpei Han, Tianshu Wang, Boxi Cao, Le Sun, Yingfei Sun: Spiral of Silence: How is Large Language Model Killing Information Retrieval?—A Case Study on Open Domain Question Answering. ACL (1) 2024: 14930-14951 (SAC Award)
• Jian Luo, Xuanang Chen, Ben He, Le Sun: PRP-Graph: Pairwise Ranking Prompting to LLMs with Graph Aggregation for Effective Text Re-ranking. ACL (1) 2024: 5766-5776
• Ying Zhou, Ben He, Le Sun: Navigating the Shadows: Unveiling Effective Disturbances for Modern AI Content Detectors. ACL (1) 2024: 10847-10861
• Ning Bian, Xianpei Han, Hongyu Lin, Yaojie Lu, Ben He, Le Sun: Rule or Story, Which is a Better Commonsense Expression for Talking with Large Language Models? ACL (1) 2024: 4023-4043
• Xinran Chen, Xuanang Chen, Ben He, Tengfei Wen, Le Sun: Analyze, Generate and Refine: Query Expansion with LLMs for Zero-Shot Open-Domain QA. ACL (Findings) 2024: 11908-11922
• Yanjiang Liu, Tianyun Zhong, Yaojie Lu, Hongyu Lin, Ben He, Shuheng Zhou, Huijia Zhu, Weiqiang Wang, Zhongyi Liu, Xianpei Han, Le Sun: XMC-Agent : Dynamic Navigation over Scalable Hierarchical Index for Incremental Extreme Multi-label Classification. ACL (Findings) 2024: 5659-5672
• Canjia Li, Andrew Yates, Sean MacAvaney, Ben He, Yingfei Sun: PARADE: Passage Representation Aggregation for Document Reranking. ACM Trans. Inf. Syst. 42(2): 36:1-36:26 (2024)
• Yiran Wang, Xuanang Chen, Ben He, Le Sun: Contextual Interaction for Argument Post Quality Assessment. EMNLP 2023: 10420-10432
• Xinlin Peng, Ying Zhou, Ben He, Le Sun, Yingfei Sun: Hiding the Ghostwriters: An Adversarial Evaluation of AI-Generated Student Essay Detection. EMNLP 2023: 10406-10419 data
• Xuanang Chen, Ben He, Zheng Ye, Le Sun, Yingfei Sun: Towards Imperceptible Document Manipulations against Neural Ranking Models. ACL (Findings) 2023: 6648-6664
• Xiaoyang Chen, Yanjiang Liu, Ben He, Le Sun, Yingfei Sun: Understanding Differential Search Index for Text Retrieval. ACL (Findings) 2023: 10701-10717
• Xueru Wen, Xiaoyang Chen, Xuanang Chen, Ben He, Le Sun: Offline Pseudo Relevance Feedback for Efficient and Effective Single-pass Dense Retrieval. SIGIR 2023: 2209-2214
• Xuanang Chen, Ben He, Kai Hui, Le Sun, Yingfei Sun: Dealing with textual noise for robust and effective BERT re-ranking. Inf. Process. Manag. 60(1): 103135 (2023)
• Xuanang Chen, Jian Luo, Ben He, Le Sun, Yingfei Sun: Towards Robust Dense Retrieval via Local Ranking Alignment. IJCAI 2022: 1980-1986
• Ying Zhou, Xuanang Chen, Ben He, Zheng Ye, Le Sun: Re-thinking Knowledge Graph Completion Evaluation from an Information Retrieval Perspective. SIGIR 2022: 916-926.
• Xuanang Chen, Ben He, Kai Hui, Yiran Wang, Le Sun, Yingfei Sun: Contextualized Offline Relevance Weighting for Efficient and Effective Neural Retrieval. SIGIR 2021: 1617-1621 (Best short paper)
• Zhi Zheng, Kai Hui, Ben He, Xianpei Han, Le Sun, Andrew Yates: BERT-QE: Contextualized Query Expansion for Document Re-ranking. EMNLP (Findings) 2020: 4718-4728
• Cancan Jin, Ben He, Kai Hui, Le Sun: TDNN: A Two-stage Deep Neural Network for Prompt-independent Automated Essay Scoring. ACL (1) 2018: 1088-1097
• Canjia Li, Yingfei Sun, Ben He, Le Wang, Kai Hui, Andrew Yates, Le Sun, Jungang Xu: NPRF: A Neural Pseudo Relevance Feedback Framework for Ad-hoc Information Retrieval. EMNLP 2018: 4482-4491
• Yanhua Ran, Ben He, Kai Hui, Jungang Xu, Le Sun: A document-based neural relevance model for effective clinical decision support. BIBM 2017: 798-804
• Xin Zhang, Ben He, Tiejian Luo: Training query filtering for semi-supervised learning to rank with pseudo labels. World Wide Web 19(5): 833-864 (2016)
• Qingli Ma, Ben He, Jungang Xu, Bin Wang: A Set-Based Training Query Classification Approach for Twitter Search. WAIM (1) 2016: 491-503
• Hongbo Chen, Jungang Xu, Ben He: Automated Essay Scoring by Capturing Relative Writing Quality. Comput. J. 57(9): 1318-1330 (2014)
• Hongbo Chen, Ben He: Automated Essay Scoring by Maximizing Human-Machine Agreement. EMNLP 2013: 1741-1752
• Sha Lu, Ben He, Jungang Xu: Hyper-geometric Model for Information Retrieval Revisited. AIRS 2013: 62-73
• Xin Zhang, Ben He, Tiejian Luo, Dongxing Li, Jungang Xu: Clustering-based transduction for learning a ranking model with limited human labels. CIKM 2013: 1777-1782
• Xin Zhang, Ben He, Tiejian Luo, Baobin Li: Query-biased learning to rank for real-time twitter search. CIKM 2012: 1915-1919
• Xin Zhang, Ben He, Tiejian Luo: Transductive Learning for Real-Time Twitter Search. ICWSM 2012
• Ben He, Jimmy Xiangji Huang, Xiaofeng Zhou: Modeling term proximity for probabilistic information retrieval models. Inf. Sci. 181(14): 3017-3031 (2011)
• Kai Hui, Ben He, Tiejian Luo, Bin Wang: A Comparative Study of Pseudo Relevance Feedback for Ad-hoc Retrieval. ICTIR 2011: 318-322
• Zheng Ye, Ben He, Xiangji Huang, Hongfei Lin: Revisiting Rocchio's Relevance Feedback Algorithm for Probabilistic Models. AIRS 2010: 151-161
• Ben He, Iadh Ounis: Finding good feedback documents. CIKM 2009: 2011-2014
• Rodrygo L. T. Santos, Ben He, Craig Macdonald, Iadh Ounis: Integrating Proximity to Subjective Sentences for Blog Opinion Retrieval. ECIR 2009: 325-336
• Ben He, Iadh Ounis: Studying Query Expansion Effectiveness. ECIR 2009: 611-619
• Ben He, Craig Macdonald, Jiyin He, Iadh Ounis: An effective statistical approach to blog post opinion retrieval. CIKM 2008: 1063-1072 (CCF-B)
• Ben He, Craig Macdonald, Iadh Ounis: Retrieval sensitivity under training using different measures. SIGIR 2008: 67-74
• Ben He, Iadh Ounis: On setting the hyper-parameters of term frequency normalization for information retrieval. ACM Trans. Inf. Syst. 25(3): 13 (2007)
• Ben He, Iadh Ounis: Parameter sensitivity in the probabilistic model for ad-hoc retrieval. CIKM 2007: 263-272
• Ben He, Iadh Ounis: Query performance prediction. Inf. Syst. 31(7): 585-594 (2006)
• Ben He, Iadh Ounis: A study of the dirichlet priors for term frequency normalisation. SIGIR 2005: 465-471
• Rachel Tsz-Wai Lo, Ben He, Iadh Ounis: Automatically Building a Stopword List for an Information Retrieval System. JDIM 3(1): 3-8 (2005)
• Ben He, Iadh Ounis: Inferring Query Performance Using Pre-retrieval Predictors.. SPIRE 2004: 43-54
• Ben He, Iadh Ounis: A study of parameter tuning for term frequency normalization. CIKM 2003: 10-16