Zhikai Wang - SJTU


Work experience

  • Dec. 2021-Dec. 2022: Research Assistant in Tencent, supervised by Zibin Zhang and Kangyi Lin.
    • We study incremental learning for CTR prediction by resampling data with features which have not been updated for a while. We deployed our feature staleness aware CTR prediction method on Wechat Official Accounts Platform and achieved prominent improvements in A/B test.


  • 2023.03: Our paper “Incremental Learning for Multi-interest Sequential Recommendation” received the ICDE 2023 Best Paper Award (top 1)!

Research interest

I’m interested in devleoping efficient models for recommendation system (e.g. CTR prediction and sequential recommendation) and improve the generalization ability of models in incremental scenario.