Sparse Approximate Solutions to Linear Systems
SIAM Journal on Computing
Uncovering shared structures in multiclass classification
Proceedings of the 24th international conference on Machine learning
Generalized Rank-Constrained Matrix Approximations
SIAM Journal on Matrix Analysis and Applications
An accelerated gradient method for trace norm minimization
ICML '09 Proceedings of the 26th Annual International Conference on Machine Learning
Exact Matrix Completion via Convex Optimization
Foundations of Computational Mathematics
Learning incoherent sparse and low-rank patterns from multiple tasks
Proceedings of the 16th ACM SIGKDD international conference on Knowledge discovery and data mining
A Singular Value Thresholding Algorithm for Matrix Completion
SIAM Journal on Optimization
Trace Norm Regularization: Reformulations, Algorithms, and Multi-Task Learning
SIAM Journal on Optimization
Low-rank estimation of higher order statistics
IEEE Transactions on Signal Processing
On the equivalent of low-rank linear regressions and linear discriminant analysis based regressions
Proceedings of the 19th ACM SIGKDD international conference on Knowledge discovery and data mining
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In multivariate analysis, rank minimization emerges when a low-rank structure of matrices is desired as well as a small estimation error. Rank minimization is nonconvex and generally NP-hard, imposing one major challenge. In this paper, we consider a nonconvex least squares formulation, which seeks to minimize the least squares loss function with the rank constraint. Computationally, we develop efficient algorithms to compute a global solution as well as an entire regularization solution path. Theoretically, we show that our method reconstructs the oracle estimator exactly from noisy data. As a result, it recovers the true rank optimally against any method and leads to sharper parameter estimation over its counterpart. Finally, the utility of the proposed method is demonstrated by simulations and image reconstruction from noisy background.