I am an Assistant Professor of School of Data Science at the City University of Hong Kong (CityU), which is ranked #53 in QS World University Rankings 2022.

I have multiple PhD, Joint PhD, Self-financed PhD, Part-time PhD, Postdoc, RA and Visiting positions who are interested in pursuing data mining and machine learning research and applications, especially

  • Personalization, Recommender System, Online Advertising, Search Engine, and Information Retrieval
  • Urban Computing, Smart City, GeoAI, Spatio-Temporal Data Analysis, and Location-Based Social Networks
  • Deep Reinforcement Learning, Automated Machine Learning, Graph Learning, Trustworthy AI, and Multimodal
  • AI for Social Computing, Finance, Education, Ecosystem, and Healthcare

  • PhD Applications [Link]
    (I have positions for 23 Spring and Fall)

    If you are interested in working with me, please first contact me at: xy.zhao [at]
  • Please highlight your BS's Average Score/100 and TOEFL/IELTS, since CityU has specific requirements
  • Please provide your publications, homepage link, google schoalr link, research projects/interns, ranking, etc
  • Please attach your CV/Resume, and Transcripts of BS/MS programmes
  • Exceptionally qualified students are encouraged to apply the Hong Kong PhD Fellowship Scheme (HKPFS) with scholarship HK$26,900/month, travel allowance HK$13,500/year, free tuition and on-campus hostel. [Post]

    Self-financed and Part-time PhD positions are available year round.

    Joint PhD Positions
    (双一流A类+国科大+南科大 准备读博/转博/博一二学生)

    You are welcomed to apply the CityU Joint Ph.D. programme. You can obtain the CityU’s PhD degree simultaneously within the same normal year of study. There is no financial cost from students, and you will get a scholarship of HK$17,500/month during CityU. Please prepare your English test (TOEFL 79 or IELTS 6.5), and submit application to your home university in Dec every year.


    Postdoc, RA and Visiting Positions

    I am actively recruiting self-motivated Postdocs. Qualified candidates are encouraged to apply the RGC Postdoctoral Fellowship Scheme (PDFS) with basic salary HK$406,550/year and travel allowance HK$12,920/year.

    Master's and Bachelor's students at CityU who intent to work with me, e.g., for your dissertation, please contact me as earliest due to the limited positions per year. ML knowledge, Python coding and English writing experience is desirable.

    Visiting research students & scholars positions are available year around.

    Online RA positions are available for excellent students.

    Due to the high volume of the emails, I may not be able to reply to each individual of them.