I am now on leave to Prof. Rainer Gemulla's group at University of Mannheim.

I am a PhD student in Database group, advised by Prof. Nikos Mamoulis. My current research interests lie in recommender systems. I was with Database group at the University of Maryland, College Park, advised by Prof. Amol Deshpande from Aug 2015 to Jan 2016.

Professional Services

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


  1. 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]

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

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

    In SDM, 2017. [pdf]

  3. Reverse k-Ranks Queries on Large Graphs

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

    In EDBT, 2017. [pdf]

  4. 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]

  5. A Revisit to Social Network-Based Recommender Systems

    Hui Li, Dingming Wu and Nikos Mamoulis

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

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

    Hui Li and Wei Liu

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

  7. Content-Based Filtering Recommendation Algorithm Using HMM

    Hui Li, Fei Cai and Zhifang Liao

    In ICCIS, 2012.


  • Social Network Based Recommender Systems

    Thesis for Master of Philosophy, The University of Hong Kong, 2015. [pdf] [slides]

  • Places I have been to [map]

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