A trust region algorithm with adaptive cubic regularization methods for nonsmooth convex minimization

  • Authors:
  • Sha Lu;Zengxin Wei;Lue Li

  • Affiliations:
  • School of Mathematics and Information Science, Guangxi University, Nanning, China and School of Mathematical Science, Guangxi Teachers Education University, Nanning, China;School of Mathematics and Information Science, Guangxi University, Nanning, China;School of Mathematical Sciences, Guangxi Normal University, Guilin, China

  • Venue:
  • Computational Optimization and Applications
  • Year:
  • 2012

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Abstract

By using the Moreau-Yosida regularization and proximal method, a new trust region algorithm is proposed for nonsmooth convex minimization. A cubic subproblem with adaptive parameter is solved at each iteration. The global convergence and Q-superlinear convergence are established under some suitable conditions. The overall iteration bound of the proposed algorithm is discussed. Preliminary numerical experience is reported.