1 citations · 1 across the 3 of their papers we have counts for
4 papers
Smallest Singular Value Estimates for Nonuniform Fourier Matrices via Periodic Nonuniform Sampling
Liang Chen, Rongrong Lin, Haizhang Zhang
We study the smallest singular value of nonuniform Fourier matrices in two settings: clustered nodes and perturbations of an equispaced grid. By reducing the problem to spectral no…
Computing the Proximal Operator of the -th Power of the -norm for Group Sparsity
Rongrong Lin, Shihai Chen, Han Feng +1
In this note, we comprehensively characterize the proximal operator of the -th power of the -norm (denoted by ) with by exploiting th…
On Choosing Initial Values of Iteratively Reweighted Algorithms for the Piece-wise Exponential Penalty
Rongrong Lin, Shimin Li, Yulan Liu
Computing the proximal operator of the sparsity-promoting piece-wise exponential (PiE) penalty with a given shape parameter , which is treated as a popular nonc…
Multi-task Learning in Vector-valued Reproducing Kernel Banach Spaces with the Norm
Rongrong Lin, Guohui Song, Haizhang Zhang
Targeting at sparse multi-task learning, we consider regularization models with an penalty on the coefficients of kernel functions. In order to provide a kernel method for…