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eess.SP2026
Newton-Direction-Based ReLU-Thresholding Methods for Nonnegative Sparse Signal Recovery
Ning Bian, Zhong-Feng Sun, Yun-Bin Zhao +2
Nonnegative sparse signal recovery has been extensively studied due to its broad applications. Recent work has integrated rectified linear unit (ReLU) techniques to enhance existin…
math.OC2026
Optimality Conditions for Sparse Bilinear Least Squares Problems
Zixin Deng, Zheng-Hai Huang, Yun-Bin Zhao
The first-order optimality conditions of sparse bilinear least squares problems are studied. The so-called T-type and N-type stationary points for this problem are characterized in…