张俊祺

张俊祺

PhD student at Tsinghua University

About Me: Junqi Zhang (张俊祺)

I am now a fifth year Ph.D. student in THUIR group, Department of Computer Science and Technology in Tsinghua University, Beijing, China. My supervisor is Prof. Yiqun Liu. My major research interests are in multimodal information retrieval and whole-page optimization.

Recent Professional Activities

  • Our paper “Relevance Estimation with Multiple Information Sources on Search Engine Result Pages” won the Best Overall Paper at CIKM 2018!

Publications

  • Junqi Zhang, Yiqun Liu, Jiaxin Mao, Xiaohui Xie, Min Zhang, Shaoping Ma, and Qi Tian. Global or Local: Constructing Personalized Click Models for Web Search. The Web Conference 2022. (theWebConf 2022).
  • Junqi Zhang, Yiqun Liu, Jiaxin Mao, Weizhi Ma, Jiazheng Xu, Shaoping Ma and Qi Tian. User Behavior Simulation for Search Result Re-ranking. ACM Transactions on Information Systems (TOIS).
  • Junqi Zhang, Jiaxin Mao, Yiqun Liu, Ruizhe Zhang, Min Zhang, Shaoping Ma, Jun Xu and Qi Tian. Context-Aware Ranking by Constructing a Virtual Environment for Reinforcement Learning. The 28th ACM International Conference on Information and Knowledge Management (CIKM 2019). Preprint Version. Datasets.
  • Yiqun Liu, Junqi Zhang, Jiaxin Mao, Min Zhang, Shaoping Ma, Qi Tian, Yanxiong Lu, Leyu Lin. Search Result Reranking with Visual and Structure Information Sources. ACM Transactions on Information Systems (TOIS). Volume 37 Issue 3. Preprint Version.
  • Junqi Zhang. Listwise v.s. Pagewise: Towards Better Ranking Strategies for Heterogeneous Search Results. The 12th ACM International Conference on Web Search and Data Mining (WSDM 2019 Doctoral Consortium). Preprint Version.
  • Junqi Zhang, Yiqun Liu, Shaoping Ma, Qi Tian. Relevance Estimation with Multiple Information Sources on Search Engine Result Pages. The 27th ACM International Conference on Information and Knowledge Management (CIKM 2018 Best Overall Paper). Preprint Version. Datasets.

Education

  • Sep. 2017 - Present, Ph.D., Department of Computer Science and Technology, Tsinghua University.
  • Sep. 2013 - Jul. 2017, B.E., Department of Computer Science and Technology, Tsinghua University.

Experiences

  • Jun. 2021 - Sep. 2021, Internship, J.P. Morgan Investment Consulting (Beijing) Limited.
  • Nov. 2018 - Dec. 2019, Internship, Huawei Noah’s Ark Lab.
  • Feb. 2019, WSDM 2019 Doctoral Consortium.
  • Jun. 2018 - Sep. 2018, Visiting student, NExT++ Research Center, National University of Singapore.