Publications

Thesis

• Sparse Dimensionality Reduction Methods: Algorithms and Applications
  Computational and Applied Mathematics, National University of Singapore, July 2013.
  pdf

Preprints

• Multivariate Regression with Grossly Corrupted Observations: A Robust Approach and its Applications
  Xiaowei Zhang, Chi Xu, Yu Zhang, Tingshao Zhu, Li Cheng
  arXiv:1701.04207, project website, GitHub

• Sparse Kernel Canonical Correlation Analysis via L1-regularization
  Xiaowei Zhang, Delin Chu, Li-Zhi Liao, Michael K. Ng
  arXiv:1701.04207, MATLAB codes

Papers

• Least Squares Approximation via Sparse Subsampled Randomized Hadamard Transform
  Dan Teng, Xiaowei Zhang, Li Cheng, Delin Chu
  In IEEE Transactions on Big Data (T-BD), 2020.

• Multivariate Regression with Gross Errors on Manifold-valued Data
  Xiaowei Zhang, Xudong Shi, Yu Sun, Li Cheng
  In IEEE Transactions on Pattern Analysis and Machine Intelligence (T-PAMI), 2017.
  arXiv:1703.08772, supplementary , project website, GitHub

• Transduction on Directed Graphs via Absorbing Random Walks
  Jaydeep De^*, Xiaowei Zhang^*, Feng Lin, and Li Cheng (* denotes equal contribution.)
  In IEEE Transactions on Pattern Analysis and Machine Intelligence (T-PAMI), 2017.
  pdf , project website, GitHub

• Nonconvex and Nonsmooth Optimization with Generalized Orthogonality Constraints: An Approximate Augmented Lagrangian Method
  Hong Zhu, Xiaowei Zhang, Delin Chu, and Li-Zhi Liao
  In Journal of Scientific Computing, Springer, 72(1), pp. 331–372, 2017.
  pdf , MATLAB codes

• Segment 2D and 3D Filaments by Learning Structured and Contextual Features
  Lin Gu, Xiaowei Zhang, He Zhao, Huiqi Li, and Li Cheng
  In IEEE Transactions on Medical Imaging (TMI), 36(2), pp. 596-606, 2017.
  pdf , supplementary , project website

• Incremental Regularized Least Squares for Dimensionality Reduction of Large-Scale Data
  Xiaowei Zhang, Li Cheng, Delin Chu, Li-Zhi Liao, Michael K. Ng, and Roger C. E. Tan
  In SIAM Journal on Scientific Computing (SISC), 38(3), pp. B414–B439, 2016.
  pdf , MATLAB codes

• Sparse Uncorrelated Linear Discriminant Analysis for Undersampled Problems
  Xiaowei Zhang, Delin Chu, and Roger C. E. Tan.
  In IEEE Transactions on Neural Networks and Learning Systems (TNNLS), 27(7), pp. 1469-1485, 2016.
  pdf , MATLAB codes

• Estimate Hand Poses Efficiently From Single Depth Images
  Chi Xu, Ashwin Nanjappa, Xiaowei Zhang, and Li Cheng.
  In International Journal of Computer Vision (IJCV), 116(1), pp. 21-45, 2016.
  pdf , project website

• A Graph-Theoretical Approach for Tracing Filamentary Structures in Neuronal and Retinal Images
  Jaydeep De, Li Cheng, Xiaowei Zhang, Feng Lin, Huiqi Li, Kok Haur Ong, Weimiao Yu, Yuanhong Yu, and Sohail Ahmed.
  In IEEE Transactions on Medical Imaging (TMI), 35(1), pp. 252-272, 2016.
  pdf , project website

• Robust Multivariate Regression with Grossly Corrupted Observations and Its Application to Personality Prediction
  Xiaowei Zhang, Li Cheng, and Tingshao Zhu.
  In The 7th Asian Conference on Machine Learning (ACML), PMLR 45:112-126, 2016.
  pdf , project website

• Tracing Retinal Blood Vessels by Matrix-Forest Theorem of Directed Graphs
  Li Cheng, Jaydeep De, Xiaowei Zhang, Feng Lin, and Huiqi Li.
  In The 17th Medical Image Computing and Computer-Assisted Intervention (MICCAI), pp. 626-633, 2014.
  pdf , project website

• Sparse Canonical Correlation Analysis: New Formulation and Algorithm
  Delin Chu, Li-Zhi Liao, Michael K. Ng, and Xiaowei Zhang (alphabetic order)
  In IEEE Transactions on Pattern Analysis and Machine Intelligence (T-PAMI), 35(12), pp. 3050-3065, 2013.
  pdf , supplementary, MATLAB codes

• Sparse Uncorrelated Linear Discriminant Analysis
  Delin Chu, and Xiaowei Zhang (alphabetic order)
  In The 30th International Conference on Machine Learning (ICML), PMLR 28 (1), pp. 45-52, 2013.
  pdf , MATLAB codes

• Sparse Kernel Canonical Correlation Analysis
  Delin Chu, Li-Zhi Liao, Michael K. Ng, and Xiaowei Zhang (alphabetic order)
  In International Multi-Conference of Engineers and Computer Scientists (IMECS), 2013.
  pdf , MATLAB codes