Ji Liu

Optimization and machine learning system (deep learning optimization, stochastic algorithms, asynchronous parallel algorithms, decentralized algorithms, communication efficient algorithms, numerical analysis)

Reinforcement Learning, bandit problems, and Bayes optimization

Tensor / matrix completion and decomposition, and missing values

Sparse learning / compressed sensing / feature selection

Machine teaching

Healthcare and bioinformatics

Computer Vision (abnormal event detection, online metric learning, video analysis, and dictionary learning)

Robotics and 3D vision reconstruction

  • Ji Liu, Yang Cong, Yuechao Wang, and Yandong Tang, "Lunar Terrain Reconstruction Based on PDEs Method", ICIP, 2008.
  • Ji Liu, Junjian Peng, Yuechao Wang, and Yandong Tang, "A PDEs Method Preserving Boundaries on Dense Disparity Map Reconstruction", VISAPP, 2008.
  • Ji Liu, Yuechao Wang, Chuan Zhou, and Yanfeng Geng, "A Navigation Simulation System of Lunar Rover", ICNSC, pp556-561, 2008. [video1][video2]
  • Ji Liu, Yuechao Wang, Chuan Zhou, and Yongzhi He, "A Method of Eliminating the Wheel-terrain Interaction Errors in Lunar Rover Simulation", Chinese Journal of System Simulation, 2008.
  • Yang Cong, Xiaomao Li, Ji Liu, and YandongTang, "A Stairway Detection Algorithm based on Vision for UGV Stair Climbing", ICNSC, 2008.
  • Jujian Peng, Ji Liu, Yanfeng Geng, Jianda Han, and Yandong Tang, "A Dynamic Stereo Matching Method Based on Epipaolar-region", Chinese Journal of Computer engineering, 2008.
  • Yanfeng Geng, Kai Kang, Ji Liu, and Hong Wang, "Manufacturing Schedule of Dual-armed Cluster Tools Based on Heuristic Search", ICIT, 2008.
  • Yongzhi He, Chuan Zhou, Ji Liu, Dalong Tan, "Research on Movement Simulation for Wheeled Mobile Robot", Chinese Journal of Scientific Instrument, 2007.