Convergence analysis of a proximal point algorithm for minimizing differences of functions

Authors: Nguyễn Thái An, Nguyễn Mậu Nam,

https://doi.org/10.1080/02331934.2016.1253694

Publisher, magazine: ,

Publication year: 2017

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Abstract

Several optimization schemes have been known for convex optimization problems. However, numerical algorithms for solving nonconvex optimization problems are still underdeveloped. A significant progress to go beyond convexity was made by considering the class of functions representable as differences of convex functions. In this paper, we introduce a generalized proximal point algorithm to minimize the difference of a nonconvex function and a convex function. We also study convergence results of this algorithm under the main assumption that the objective function satisfies the Kurdyka–ᴌojasiewicz property.

Tags: DC programming, proximal point algorithm, difference of convex functions, Kurdyka–ᴌojasiewicz inequality