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math.OC2024
Anderson Acceleration in Nonsmooth Problems: Local Convergence via Active Manifold Identification
Kexin Li, Luwei Bai, Xiao Wang +1
Anderson acceleration is an effective technique for enhancing the efficiency of fixed-point iterations; however, analyzing its convergence in nonsmooth settings presents significan…
math.OC2024
Avoiding strict saddle points of nonconvex regularized problems
Luwei Bai, Yaohua Hu, Hao Wang +1
In this paper, we consider a class of non-convex and non-smooth sparse optimization problems, which encompass most existing nonconvex sparsity-inducing terms. We show the second-or…