Zhizhong Li

lizhizhong AT outlook.com

Senior researcher

SenseTime Inc.

Personal Site


I am currently a senior researcher at SenseTime Inc. I obtained my PhD degree from The Chinese Univeristy of Hong Kong.


  • Geometric Optimization
  • Computer Vision


  • Ph.D. in Information Engineering, 2015-2019

    The Chinese University of Hong Kong

  • Msc. in Pure Mathematics, 2011-2015

    Peking University

  • Bsc. in Pure Mathematics & Applied Mathematics, double major in English, 2006-2010

    Zhengzhou University

Publications @ZERO Lab

Determining Step Sizes in Geometric Optimization Algorithms. ISIT, 2015.

We proposed a new minimization scheme aiming to find a better step size utilizing the first order information of the search curve.

A New Retraction for Accelerating the Riemannian Three-Factor Low-Rank Matrix Completion Algorithm. CVPR, 2015.

We proposed a new retraction for the quotient manifold used in R3MC, which is a geometric optimization algorithm for the matrix …