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The smoothing gradient method for a kind of special optimization problem

CHEN Yuanyuan1,2,*  GAO Yan1  LIU Zhimin2  DU Shouqiang2   

  1. 1. Business School, University of Shanghai for Science and Technology, Shanghai 200093, China; 2. College of Mathematics and Statistic, Qingdao University, Qingdao 266071, Shangdong, China
  • Received:2017-03-30 Online:2017-06-15 Published:2017-06-15

Abstract:

In this paper, we study a kind of special nonsmooth optimization problem, which is widely used in the field of compressed sensing and image processing. A smoothing gradient method is proposed and the global convergence is also given. Finally, the related numerical results indicate the efficiency of the given method.

Key words: nonsmooth optimization, smoothing gradient method, global convergence