2 papers
cs.LG2024
Locally Regularized Sparse Graph by Fast Proximal Gradient Descent
Dongfang Sun, Yingzhen Yang
Sparse graphs built by sparse representation has been demonstrated to be effective in clustering high-dimensional data. Albeit the compelling empirical performance, the vanilla spa…
math.OC2024
Projective Proximal Gradient Descent for A Class of Nonconvex Nonsmooth Optimization Problems: Fast Convergence Without Kurdyka-Lojasiewicz (KL) Property
Yingzhen Yang, Ping Li
Nonconvex and nonsmooth optimization problems are important and challenging for statistics and machine learning. In this paper, we propose Projected Proximal Gradient Descent (PPGD…