I am a PhD student in Database group, advised by Prof. Nikos Mamoulis. My current research interests lie in recommender systems and knowledge graph.

Since Sep 2017, I am doing an internship in Systems and Machine Learning group, NEC Laboratories Europe. I was with Prof. Amol Deshpande at University of Maryland, College Park from Aug 2015 to Jan 2016 and Prof. Rainer Gemulla at University of Mannheim from Apr 2017 to Aug 2017.

Professional Services

  • PC Member: SIGIR 2015, 2016, 2017 (short paper)
  • Reviewer: TKDE
  • External Reviewer: KDD, VLDB, ICDE, etc.


  1. Efficient Fault-Tolerant Group Recommendation Using alpha-beta-core

    Danghao Ding, Hui Li, Zhipeng Huang, Nikos Mamoulis

    To appear in CIKM, 2017.

  2. On Multi-Relational Link Prediction with Bilinear Models

    Yanjie Wang, Rainer Gemulla and Hui Li

    arXiv preprint, 2017. [arXiv]

  3. FEXIPRO: Fast and Exact Inner Product Retrieval in Recommender Systems

    Hui Li, Tsz Nam Chan, Man Lung Yiu and Nikos Mamoulis

    In SIGMOD, 2017. [pdf] [slides] [code] [poster]

  4. HBGG: a Hierarchical Bayesian Geographical Model for Group Recommendation

    Ziyu Lu, Hui Li, Nikos Mamoulis, and David W. Cheung

    In SDM, 2017. [pdf]

  5. Reverse k-Ranks Queries on Large Graphs

    Yuqiu Qian, Hui Li, Nikos Mamoulis, Yu Liu and David W. Cheung

    In EDBT, 2017. [pdf]

  6. Overlapping Community Regularization for Rating Prediction in Social Recommender Systems

    Hui Li, Dingming Wu, Wenbin Tang and Nikos Mamoulis

    In RecSys, 2015. [pdf] [slides] [video] [data]

  7. A Revisit to Social Network-Based Recommender Systems

    Hui Li, Dingming Wu and Nikos Mamoulis

    In SIGIR, 2014. [pdf] [poster] [data]

  8. HMM-Based FCM Algorithm for Gene Sequences Clustering (in Chinese)

    Hui Li and Wei Liu

    Application Research of Computers, 30 (Suppl): 175-176, 2013.

  9. Content-Based Filtering Recommendation Algorithm Using HMM

    Hui Li, Fei Cai and Zhifang Liao

    In ICCIS, 2012.

Selected Awards

  • Postgraduate Scholarship, University of Hong Kong2013 - Present
  • UMD Computer Science Dean's Fellowship, University of Maryland, College Park2015 - 2016
  • Outstanding Undergraduate Student, Central South University2012
  • Third Class Prize in Android Challenge for Chinese Students (Central China Region), Google2011
  • Outstanding Award in CSCUP, Institute of Software Chinese Academy of Sciences2011
  • Tong Ren Scholarship, Central South University2010