4 papers
A consensus-based optimization method for nonsmooth nonconvex programs with approximated gradient descent scheme
Jiazhen Wei, Fan Wu, Wei Bian
In this paper, we are interested in finding the global minimizer of a nonsmooth nonconvex unconstrained optimization problem. By combining the discrete consensus-based optimization…
Extrapolated Hard Thresholding Algorithms with Finite Length for Composite Penalized Problems
Fan Wu, Jiazhen Wei, Wei Bian
For a class of sparse optimization problems with the penalty function of , we first characterize its local minimizers and then propose an extrapolated hard thresho…
Smoothing Iterative Consensus-based Optimization Algorithm for Nonsmooth Nonconvex Optimization Problems with Global Optimality
Jiazhen Wei, Wei Bian
In this paper, we focus on finding the global minimizer of a general unconstrained nonsmooth nonconvex optimization problem. Taking advantage of the smoothing method and the consen…
A Smoothing Consensus-Based Optimization Algorithm for Nonsmooth Nonconvex Optimization
Jiazhen Wei, Wei Bian
Lately, a novel swarm intelligence model, namely the consensus-based optimization (CBO) algorithm, was introduced to deal with the global optimization problems. Limited by the cond…