I am now a second year master student in THUIR, Department of Computer Science and Technology, Tsinghua University. My supervisor is Prof. Yiqun Liu. My major research interests are about Information Retrieval and Web Search.

Education

• 09.2022-present Master, Department of Computer Science and Technology, Tsinghua University, China.
• 09.2018-06.2022 B.S., Electronic Engineering, Beijing University of Aeronautics and Astronautics, China.
• 09.2019-06.2022 Minor, Mathematics, Beijing University of Aeronautics and Astronautics, China.

News

• 04.2023 We participated in COLIEE 2023 - Legal Case Retrieval Task and won the first place [Paper] [Code].
• 04.2023 We participated in COLIEE 2023 - Legal Case Entailment Task and won the third place[Paper] [Code].
• 03.2023 We participated in WSDM Cup 2023 - Unbiased Learning & Pre-training for Web Seach Task and won the second place [Pre-training Paper] [Unbiased Paper] [Code].
• 12.2022 I participated in CAIL2022 and won the second place [Link].
• 08.2022 We participated in LIC2022 and won the third prize [Link].

Papers

• I3Retriever: Incorporating Implicit Interaction in Pre-trained Language Models for Passage Retrieval.
  Qian Dong, Yiding Liu, Qingyao Ai, Haitao Li, Shuaiqiang Wang, Yiqun Liu, Dawei Yin, Shaoping Ma.
  (CIKM 2023)
  [Paper]
• An Intent Taxonomy of Legal Case Retrieval.
  Yunqiu Shao, Haitao Li, Yueyue Wu, Yiqun Liu, Qingyao Ai, Jiaxin Mao, Yixiao Ma, Shaoping Ma.
  (TOIS)
  [Paper]
• THUIR@ COLIEE 2023: Incorporating Structural Knowledge into Pre-trained Language Models for Legal Case Retrieval.
  Haitao Li, Weihang Su, Changyue Wang, Yueyue Wu, Qingyao Ai, Yiqun Liu.
  (COLIEE 2023)
  [Paper] [Code]
• THUIR@ COLIEE 2023: More Parameters and Legal Knowledge for Legal Case Entailment.
  Haitao Li, Changyue Wang, Weihang Su, Yueyue Wu, Qingyao Ai, Yiqun Liu.
  (COLIEE 2023)
  [Paper] [Code]
• Constructing Tree-based Index for Efficient and Effective Dense Retrieval.
  Haitao Li, Qingyao Ai, Jingtao Zhan, Jiaxin Mao, Yiqun Liu, Zheng Liu, Zhao Cao.
  (SIGIR 2023 Full)
  [Paper] [Code]
• SAILER: Structure-aware Pre-trained Language Model for Legal Case Retrieval.
  Haitao Li, Qingyao Ai, Jia Chen, Qian Dong, Yueyue Wu, Yiqun Liu, Chong Chen, Qi Tian.
  (SIGIR 2023 Full)
  [Paper] [Code]
• T^2Ranking: A large-scale Chinese Benchmark for Passage Ranking.
  Xiaohui Xie, Qian Dong, Bingning Wang, Feiyang Lv, Ting Yao, Weinan Gan, Zhijing Wu, Xiangsheng Li, Haitao Li, Yiqun Liu and Jin Ma.
  (SIGIR 2023 Resource)
  [Paper] [Code]
• Towards Better Web Search Performance: Pre-training, Fine-tuning and Learning to Rank.
  Haitao Li, Jia Chen, Weihang Su, Qingyao Ai, Yiqun Liu.
  (WSDM Cup 2023 Task2 (2/213 Teams))
  [Paper] [Code]
• THUIR at WSDM Cup 2023 Task 1: Unbiased Learning to Rank.
  Jia Chen, Haitao Li, Weihang Su, Qingyao Ai, Yiqun Liu.
  (WSDM Cup 2023 Task1 (2/187 Teams))
  [Paper] [Code]
• THUIR at the NTCIR-16 WWW-4 Task.
  Shenghao Yang, Haitao Li, Zhumin Chu, Jingtao Zhan, Yiqun Liu, Min Zhang and Shaoping Ma.
  (NTCIR 16)
  
• Underexposed Image Enhancement via Unsupervised Feature Attention Network.
  Fengji Ma, Haitao Li.
  (ICME 2021)
  
• A multi-level fusion network for airport capacity prediction.
  Wenbo Du, Shenwen Chen, Haitao Li, Zhishuai Li, Xianbin Cao, Yisheng Lv.
  (IEEE Transactions on Intelligent Transportation Systems (ITS))
  
• A Visual Feedback Supported Intelligent Assistive Technique for ALS Patients.
  Zihao Wang, Aojie Zhang, Xinyue Xia, Sizhe Zhang, Haitao Li, Jiaqi Wang, Shuo Gao.
  (Advanced Intelligent Systems)
  

Honors and Awards

• 2022 Outstanding Contribution to the Beijing Winter Olympics and Paralympics, five volunteers in China.
• 2022 Self-improvement Star of Chinese College Students.
• 2022 Tianyi Scholarship.
• 2022 Excellent Graduate of Beijing.
• 2021 Special Award of Xiaomi Scholarship.
• 2021 Feiyong Scholarship.
• 2021 Segway-Ninebot Scholarship.
• 2021 Huawei Intelligent Pedestal Scholarship.
• 2021 Highest Undergraduate Honor Shen Yuan medal.
• 2021 Row Model of Buaa.
• 2021 The Challenge Cup: First Prize of Beijing.
• 2021 China College Students Internet+ Innovation and Entrepreneurship Competition: Second Prize of Beijing.
• 2021 IC Design Competition: First Prize, Second place in Beijing.
• 2021 Excellent Student Leader of Beijing.
• 2020 China National Scholarship.
• 2020 Mathematical Contest in Modeling: Finalist Winner, top1% in the world.
• 2020 China Undergraduate Mathematical Contest in Modeling: National Second Prize, First Prize of Beijing.
• 2020 MathorCup: National Second Prize.

Experience

• 09.2022-present Party branch secretary of jiyan 41, Tsinghua University.
• 09.2022-present Class assistant, Tsinghua University.
• 06.2022-09.2021 Minister of Volunteer Department, The School League Committee, Buaa.
• 06.2020-09.2019 Chairman of College Student Union, Buaa.