I am a research engineer at Tencent Inc. Before that, I received my Ph.D. degree from Department of Computer Science and Technology, Tsinghua University in 2022 and B.Eng. degree from School of Data and Computer Science, Sun Yat-Sen University in 2017. I spent a unforgettable time in THUIR group and worked with my superviser Prof. Yiqun Liu in the field of user behavior analysis and search ranking model.

My interest lies in search ranking and large language model, including employing LLMs for various search tasks, building unified embedding model by LLMs and hallucination detection in LLMs.

Education

• 2022-Present, research engineer at Tencent Inc, Shenzhen.
• 2017-2022, Ph.D. student, Department of Computer Science and Technology, Tsinghua University. Advisor: Prof. Yiqun Liu
• 2013-2017, B.Eng., School of Data and Computer Science, Sun Yat-Sen University.

Publications & Manuscripts

• Xiaohui Xie, Qian Dong, Bingning Wang, Feiyang Lv, Ting Yao, Weinan Gan, Zhijing Wu, Xiangsheng Li, Haitao Li, Yiqun Liu and Jin Ma. T2 Ranking: A large-scale Chinese Benchmark for Passage Ranking. The 46th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2023)
• Fan, Yixing, Xiaohui Xie, Yinqiong Cai, Jia Chen, Xinyu Ma, Xiangsheng Li, Ruqing Zhang, and Jiafeng Guo. Pre-training methods in information retrieval. Foundations and Trends® in Information Retrieval 16, no. 3 (2022): 178-317.
• Xiangsheng Li, Jiaxin Mao, Weizhi Ma, Zhijing Wu, Yiqun Liu, Min Zhang, Shaoping Ma, Zhaowei Wang and Xiuqiang He. A Cooperative Neural Information Retrieval Pipeline with Knowledge Enhanced Automatic Query Reformulation. The 15th ACM International Conference on Web Search and Data Mining. (WSDM 2022). Preprint Version
• Xiangsheng Li, Maarten de Rijke, Yiqun Liu, Jiaxin Mao, Weizhi Ma, Min Zhang and Shaoping Ma. Investigating Session Search Behavior with Knowledge Graphs. The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval. Short Paper. (SIGIR 2021). Preprint Version. Code
• Xiangsheng Li, Jiaxin Mao, Weizhi Ma, Yiqun Liu, Min Zhang, Shaoping Ma, Zhaowei Wang and Xiuqiang He. Topic-enhanced knowledge-aware retrieval model for diverse relevance estimation. The Web Conference 2021. (theWebConf 2021). Preprint Version. Code
• Xiangsheng Li, Maarten de Rijke, Yiqun Liu, Jiaxin Mao, Weizhi Ma, Min Zhang, Shaoping Ma. Learning Better Representations for Neural Information Retrieval with Graph Information. to appear in the 29th ACM International Conference on Information and Knowledge Management. (CIKM 2020). Preprint Version. Code
• Xiangsheng Li, Yiqun Liu, Jiaxin Mao. Understanding the Role of Human-Inspired Heuristics for Retrieval Models. Frontiers of Computer Science. (Invited paper) Preprint Version
• Xiangsheng Li, Jiaxin Mao, Chao Wang, Yiqun Liu, Min Zhang and Shaoping Ma. Teach Machine How to Read: Reading Behavior Inspired Relevance Estimation. The 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval. (SIGIR 2019). Preprint Version
• Xiangsheng Li, Yiqun Liu, Jiaxin Mao, Zexue He, Min Zhang, Shaoping Ma. Understanding Reading Attention Distribution during Relevance Judgement. The 27th ACM International Conference on Information and Knowledge Management (CIKM 2018). Preprint Version. Datasets
• Xiangsheng Li, Yiqun Liu, Xin Li, Cheng Luo, Jian-Yun Nie, Min Zhang and Shaoping Ma Hierarchical Attention Network for Context-Aware Query Suggestion. The fourteenth Asia Information Retrieval Societies Conference (AIRS 2018 Best Paper Award). Preprint Version.
• Xiangsheng Li, Cheng Luo, Yiqun Liu and Shaoping Ma. Chinese Translation of SIGIR Forum 2017 special issue (with the permission of orginal editors/authors).

Honors & Awards

• Mar 2023, First prize at WSDM Cup: Unbiased Learning for Web Search and Pre-training for Web Search. Details.
• Jun 2022, Excellent graduated student in Department of Computer Science and Technology, Tsinghua University.
• Nov 2019, National Post-graduate Scholarship, Department of Computer Science and Technology, Tsinghua university.
• Nov 2018, Best Paper Award in AIRS 2018.
• Jun 2017, Outstanding Graduates Award, Sun Yat-Sen University.
• May 2017, Excellent Undergraduate Thesis Award, Sun Yat-Sen University.

Experiences

• May. 2021 - Nov. 2021. Research intern at Taobao search team in Alibaba Group.
• Oct. 2019 - Apr. 2020. Visiting PhD student, Information and Language Processing Systems group, University of Amsterdam, Netherlands.