16 citations · 17 across the 7 of their papers we have counts for
7 papers
Low-Rank Tensor Completion via Novel Sparsity-Inducing Regularizers
Zhi-Yong Wang, Hing Cheung So, Abdelhak M. Zoubir
To alleviate the bias generated by the l1-norm in the low-rank tensor completion problem, nonconvex surrogates/regularizers have been suggested to replace the tensor nuclear norm,…
A framework to generate sparsity-inducing regularizers for enhanced low-rank matrix completion
Zhi-Yong Wang, Hing Cheung So
Applying half-quadratic optimization to loss functions can yield the corresponding regularizers, while these regularizers are usually not sparsity-inducing regularizers (SIRs). To…
Robust matrix completion via Novel M-estimator Functions
Zhi-Yong Wang, Hing Cheung So
M-estmators including the Welsch and Cauchy have been widely adopted for robustness against outliers, but they also down-weigh the uncontaminated data. To address this issue, we de…
Robust Low-Rank Matrix Completion via a New Sparsity-Inducing Regularizer
Zhi-Yong Wang, Hing Cheung So, Abdelhak M. Zoubir
This paper presents a novel loss function referred to as hybrid ordinary-Welsch (HOW) and a new sparsity-inducing regularizer associated with HOW. We theoretically show that the re…
One-Bit Covariance Reconstruction with Non-zero Thresholds: Algorithm and Performance Analysis
Yu-Hang Xiao, Lei Huang, David Ramírez +2
Covariance matrix reconstruction is a topic of great significance in the field of one-bit signal processing and has numerous practical applications. Despite its importance, the con…
Globally Optimized TDOA High Frequency Source Localization Based on Quasi-Parabolic Ionosphere Modeling and Collaborative Gradient Projection
Wenxin Xiong, Christian Schindelhauer, Hing Cheung So
We investigate the problem of high frequency (HF) source localization using the time-difference-of-arrival (TDOA) observations of ionosphere-refracted radio rays based on quasi-par…