Jiafeng Guo




Institute of Computing Technology (ICT),Chinese Academy of Sciences (CAS)

CAS Key Lab of Web Data Science and Technology

  • Email : guojiafeng@ict.ac.cn
  • Office : (8610)62600936
  • Address : NO. 6 Kexueyuan South Road, Haidian District, Beijing, P.R.China,

  • Biography
  • Publication
  • Projects & ToolKits
  • Students & Talks

Jiafeng Guo is currently a Researcher of Institute of Computing Technology, Chinese Academy of Sciences, a Professor of University of Chinese Academy of Sciences, as well as a PI of Beijing Academy of Artificial Intelligence. He is the chief-vice director of the CAS key lab of network data science and techology. He received his B.E. in Computer Science and Technology from the University of Science and Technology of China, Hefei, China, in 2004 and earned his Ph.D. in Computer Software and Theory from the University of Chinese Academy of Sciences, Beijing, China, in 2009.

Dr. Guo has worked on a number of topics related to web search and data mining, including query representation and understanding, learning to rank, and text modeling. His current research is focused on neural models for information retrieval (Neural IR) and natural language understanding. He has won the Best Paper Award in ACM CIKM (2011), Best Student Paper Award in ACM SIGIR (2012) and Best Full Paper Runner-up Award in ACM CIKM (2017).

Highlight: Open ToolKit for Deep Text Matching & Neural IR

 MatchZoo3,608 MatchZoo-py445 Awesome-resources727  

Highlight: A Deep Look into Neural Ranking Models for Information Retrieval (NeuIR Survey)


  • [Nov. 2021] I will co-organize the Pre-trained Language Model for Information Retrieval (PLM4IR) workshop at WSDM 2022

  • [Jan. 2021] Our PROP model reached the top of the MSMARCO Document Ranking leaderboard

  • [Aug. 2020] A new homepage of MatchZoo has been released with rich features

  • [Apr. 2020] Two long papers have been accepted by CIKM 2020

  • [Aug. 2020] CCIR 2020 has been successfully held as an online confernece

  • [Apr. 2020] I will serve as a workshop co-chair of SIGIR 2021

  • [Sep. 2019] I will serve as a short paper co-chair of SIGIR 2020 (A Record High Number of Short Paper Submissions (507) Received!)

  • [Aug. 2019] We have just released a PyTorch version MatchZoo

  • [June. 2019] I will co-organize ASSIA 2019 in July in Haikou

  • [Apr. 2019] Three long papers and one demo paper have been accepted by SIGIR 2019

Hornors and Awards

Academic Services

  • Chairs/Co-Chairs: Workshop Co-chair of the 44th ACM SIGIR conference on Research and Development in Information Retrieval (SIGIR'21), Short Paper Co-chair of the 43rd ACM SIGIR conference on Research and Development in Information Retrieval (SIGIR'20), Short Paper Co-chair of the 5th ACM SIGIR International Conference on the Theory of Information Retrieval (ICTIR'19), Publicity Co-chair of the 4th ACM SIGIR International Conference on the Theory of Information Retrieval (ICTIR'18), Program Co-chair of the 24th China Conference on Information Retrieval (CCIR'18), Workshop Co-chair of the 8th ACM International WSDM Conference (WSDM'15), Co-chair of the 20th China Conference on Information Retrieval Young Scholar Forum (CCIR'14-CCIR'16)

  • Secretary-General: Information Retrieval Technical Committee,Chinese Information Processing Society of China

  • Associate Editor: ACM Transactions on Information Systems (TOIS), Information Retrieval Journal (IRJ), Communication of ACM (China)

  • Senior PC Member: KDD2022, CIKM2021, AAAI2019, WWW2019, SIGIR 2019

  • PC Member: WWW2020. WSDM2020, WSDM2019, EMNLP2019, NLPCC2019, SIGIR2018, EMNLP2018, KDD2018, WWW2018, AAAI2018, WSDM2018, SIGIR2017, AAAI2017, WSDM2017, EMNLP2017, CIKM2017, ACML2017, SIGIR 2016, CIKM 2016, WSDM 2016, EMNLP 2016, ACML 2016, ICTIR 2016, IJCAI 2015, ACL 2014, WSDM 2014, CIKM 2013, ICDM 2013, WSDM 2013, ACL 2013, WSDM 2012, CIKM 2012, SIGIR 2012, ACL 2012

  • Reviewer: IEEE TKDE, ACM TOIS, ACM TKDD, Information Retrieval Journal (IRJ), Neurocomputing, International Journal of Machine Learning and Cybernetics (JMLC)
















    • Jiafeng Guo, Gu Xu, Hang Li, and Xueqi Cheng, A unified and discriminative model for query refinement, Proceedings of the 32nd Annual ACM SIGIR conference, 2008, 379-386. (SIGIR 2008) [slides]

    • Gang Zhang, Yue Liu, Jiafeng Guo, and Xueqi Cheng, A Hierarchical Search Result Clustering Method, In Journal of Computer Research and Development,45(03):542-547, 2008


    • Jiafeng Guo, Lin Ding, Gang Zhang, Yue Liu, Xueqi Cheng: PSM: A New Re-Ranking Algorithm for Named-Page. In Proceedings of the Fifteenth Text REtrieval Conference, 2006 (TREC 2006)


    • Jiafeng Guo, Xinming Zhang, Fei Xie, and Guoliang Chen, A Leisure Degree Adaptive Routing Protocol for Mobile Ad Hoc Network, In Journal of Software, 2005, 16(05): 960-969.

    • Fei Xie, Xinming Zhang, Jiafeng Guo, and Guoliang Chen, A Delay Oriented Adaptive Routing Protocol for Mobile Ad hoc Networks, In Journal of Software, 2005, 16(09): 1661-1667.


    NSFC Funding

    • Information Retrieval and Evaluation (Grant No. 61722211) (2018.01-2020.12)

    • User Profiling and Personlized Recommendation based on big Transactional Data (Grant No. 61472401) (2015.01-2018.12)

    • Recommendation Technology based on Large Scale User Data (Grant No. 61003166) (2011.01-2013.12)

    • Online Social Relational Network Mining and Analysis (participation) (2013.01-2017.12)

    973 Funding

    • Fundamental Theories and Applications of Web Big Data (participation) (2014.01-2018.12)


    MatchZoo (https://ntmc-community.github.io/)

    MatchingZoom is a toolkit for text matching. It was developed with a focus on facilitate the designing, comparing and sharing of deep text matching models. The architecture of the MatchZoo toolit is depicited in Figure. There are three major modules in the toolkit, namely data preparation, model construction, training and evaluation, respectively. These three modules are actually organized as a pipeline of data flow.


    Jiafeng Guo, Yixing Fan, Xiang Ji and Xueqi Cheng. MatchZoo: A Learning, Practicing, and Developing System for Neural Text Matching. The 42st International ACM SIGIR Conference on Research and Development in Information Retrieval, Paris, France. (SIGIR 2019)

    Social Scholar (http://soscholar.com)

    A vertical social network platform for academia. The system aims to introduce collaboration into academic search, mining and analysis tasks. Supported by CAS-ICT innovation project.

    Academic Universe (http://soscholar.com/universe)

    A platform for fast exploring linked academic objects. The system provides users with a single-page view of multiple academic objects, and allows users to easily explore the academic data by filtering different aspects.

    Academic Benchmark (http://www.bigdatalab.ac.cn/benchmark/)

    A platform for not only reporting the performances of state-of-the-art algorithms in different domains, but also providing the corresponding datasets, codes, and scripts that can make the experimental results reproducible.

    Current students under my supervision

    • Sihao Yu (Ph.D.)

    • Xinyu Ma (Ph.D.)

    • Jiangui Chen (Ph.D.)

    • Yinqiong Cai (Ph.D.)

    • Lu Chen (Ph.D.)

    • Xiang Ji (Master)

    • Hui Jin (Master)

    • Jiantao Guo (Master)

    • Chunxiang Hong (Master)

    • Yunhan Shen (Master)

    Graduated students under my supervision

    • Jianing Li (Ph.D., now working CAS-ICT)

    • Lixin Su (Ph.D., now working Baidu)

    • Wei Zeng (Ph.D., now working Baidu)

    • Zizhen Wang (Master, now working Tencent)

    • Ruqing Zhang (Ph.D., now working CAS-ICT)

    • Hainan Zhang (Ph.D., now working JD)

    • Yixing Fan (Ph.D., now working CAS-ICT)

    • Liang Pang (Ph.D., now working CAS-ICT)

    • Long Xia (Ph.D., now working Baidu)

    • Fei Sun (Ph.D., now working at Alibaba)

    • Yan Xiao (Master, now working Microsoft)

    • Pengfei Wang (Ph.D., now working at BUPT)

    • Shengxian Wan (Ph.D., now working at Baidu)

    • Shuzi Niu (Ph.D., now working at CAS-IS)

    • Yadong Zhu (Ph.D., now working at Taobao)

    • Lu Bai (Ph.D., now working at Jingdong)

    • Xiaofei Zhu (Ph.D., now working at Chongqing University of Technology)

    • Xiubo Geng (Ph.D., now working at Yahoo)

    • Xiaohui Yan (Ph.D., now working at DiDi Research Lab)

    • Pan Du (Ph.D., now working at CAS-ICT)

    • Lei Cao (Ph.D., now working at CAS-ICT)

    • Chao He (Ph.D., now working at Changzhou Science and Technology Park)

    • Jianguo Wang (Ph.D., now at CAS-SIAT)

    • Tianyou Guo (Master)

    • Yan Gao (Master, now working at MSRA)

    • Fuxin Li (Master)

    • Li Li (Master)

    • Xiao Han (Master, now working at Google)

    • Huan Xue (Master, now working at Youdao)

    • Xiaolin Zhang (Master, now working at CCB)

    • Zhongxiang Chen (Master, now working at startup)

    Previously Collaborated Students

    • Qian Guo (Ph.D. candidate, co-advisor)

    • Yaogong Zhang (Ph.D. intern, co-advisor)

    • Chaosheng Fan (Ph.D. intern, co-advisor)

    • Zhenhong Chen (Master, co-advisor)

    • Bohan Li (Undergraduate intern)

    • Chunyao Zhang (Undergraduate intern)


    • Jiafeng Guo, Pre-training Methods for Information Retrieval, BAAI CONFERENCE 2021 Invited Talk [pdf]

    • Jiafeng Guo, Towards Intelligent Conversational Systems: Informativeness, Diversity and Controllability, SMP 2019 Invited Talk [pdf]

    • Jiafeng Guo, Yanyan Lan, Deep Approaches to Semantic Matching for Texts, ACML 2016 Tutorial, Hamilton, New Zealand [Part IPart II]

    • Jiafeng Guo, Jun Xu, Deep Semantic Matching for Texts, CCIR 2016 Tutorial, Guang Zhou, China [Part IPart II]

    • Jiafeng Guo, Top Conference Review--WSDM 2016, CCIR 2016 Tutorial, Guang Zhou, China [pdf]


    "Pattern Recognition and Machine Learning", (Fall 2017, 091M4042H)

    "Pattern Recognition and Machine Learning", (Fall 2016, 091M4042H)