A hybrid algorithm for nonlinear minimax problems

Fusheng Wang () and Kecun Zhang

Annals of Operations Research, 2008, vol. 164, issue 1, 167-191

Abstract: In this paper, a hybrid algorithm for solving finite minimax problem is presented. In the algorithm, we combine the trust-region methods with the line-search methods and curve-search methods. By means of this hybrid technique, the algorithm, according to the specific situation at each iteration, can adaptively performs the trust-region step, line-search step or curve-search step, so as to avoid possibly solving the trust-region subproblems many times, and make better use of the advantages of different methods. Moreover, we use second-order correction step to circumvent the difficulties of the Maratos effect occurred in the nonsmooth optimization. Under mild conditions, we prove that the new algorithm is of global convergence and locally superlinear convergence. The preliminary experiments show that the new algorithm performs efficiently. Copyright Springer Science+Business Media, LLC 2008

Keywords: Trust-region methods; Hybrid technique; Second order correction; Finite minimax problem (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1007/s10479-008-0401-7

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