Stochastic Optimization for Big Data Problems
- Ji Liu and Stephen J. Wright, "Asynchronous Stochastic Coordinate Descent: Parallelism and Convergence Properties", arXiv:1403.3862, 2014.
- Ji Liu, Stephen J. Wright, Christopher Re, and Victor Bittorf, "An Asynchronous Parallel Stochastic Coordinate Descent Algorithm", ICML, 2014.
- Ji Liu, Stephen J. Wright, and Srikrishna Sridhar, "An Asynchronous Parallel Randomized Kaczmarz Algorithm", arXiv:1401.4780, 2013.
- Srikrishna Sridhar, Victor Bittorf, Ji Liu, Ce Zhang, Christopher Re, and Stephen J. Wright, "An Approximate, Efficient LP Solver for LP Rounding", NIPS, 2013.
- Ji Liu and Stephen J. Wright, "An Accelerated Randomized Kaczmarz Algorithm", arXiv:1310.2887, 2013.
Greedy Algorithms for Optimization
- Ji Liu, Ryohei Fujimaki, and Jieping Ye, "Forward-Backward Greedy Algorithms for General Convex Smooth Functions over A Cardinality Constraint", ICML, 2014.
Optimization for Low Rank Tensor Completion and Sparse Tensor Decompotion
- Ji Liu, Przemyslaw Musialski, Peter Wonka, and Jieping Ye, "Tensor Completion for Estimating Missing Values in Visual Data", ICCV, 2009. [video] [code]
- Ji Liu, Jun Liu, Peter Wonka, and Jieping Ye, "Sparse Non-negative Tensor Factorization Using Columnwise Coordinate Decent", Pattern Recognition, 2012. [code]
- Ji Liu, Przemyslaw Musialski, Peter Wonka, and Jieping Ye, "Tensor Completion for Estimating Missing Values in Visual Data", IEEE Transaction on Pattern Analysis and Machine Intelligence, 2012. [code]
Compressed Sensing and Sparse Learning Theory
- Ji Liu, Lei Yuan, and Jieping Ye, "Dictionary LASSO: Guaranteed Sparse Recovery under Linear Transformation", arXiv:1305.0047v2, 2013.
- Ji Liu, Lei Yuan, and Jieping Ye, "Guaranteed Sparse Recovery under Linear Transformation", ICML, 2013. (oral presentation)
- Ji Liu, Peter Wonka, and Jieping Ye, "A Multi-stage Framework for Dantzig Selector and Lasso", Journal of Machine Learning Research, 2012.
- Ji Liu, Peter Wonka, and Jieping Ye, "Multi-stage Dantzig Selector", NIPS, 2010. [code]
- Ji Liu and Stephen J. Wright, "Robust Dequantized Compressive Sensing", Applied and Computational Harmonic Analysis, arXiv:1207.0577, 2012.
Reinforcement Learning
- Bo Liu, Sridhar Mahadevan, and Ji Liu, Regularized Off-Policy TD-Learning", NIPS, 2012. (spotlight)
Multi-tasks Learning
- Jianhui Chen, Ji Liu, and Jieping Ye, "Learning Incoherent Sparse and Low-Rank Patterns from Multiple Tasks", ACM Transaction on Knowledge Discovery from Data, 2012
- Jianhui Chen, Ji Liu, and Jieping Ye, "Learning Incoherent Sparse and Low-Rank Patterns from Multiple Tasks", KDD, 2010. (Honorable Mention for the best research paper)
Computer Vision (Abnormal Event Detection, Online Metric Learning, and Dictionary Learning)
- Yang Cong, Ji Liu, Junsong Yuan, and Jiebo Luo, "Self-supervised Online Metric Learning with Low Rank Constraint for Scene Categorization", IEEE Transaction on Image Processing, 2013
- Yang Cong, Junsong Yuan, Ji Liu, "Abnormal Event Detection in Crowded Scenes Using Sparse Representation", Pattern Recognition, 2012.
- Yang Cong, Junsong Yuan, Ji Liu, "Sparse Reconstruction Cost for Abnormal Event Detection", CVPR, 2011.
Early Work in Robotics and 3D 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.