A Note on Wedge Trust Region Radius Update

Abstract:

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Wedge trust region method based on traditional trust region is designed for derivative free optimization problems. This method adds a constraint to the trust region problem, which is called “wedge method”. The problem is that the updating strategy of wedge trust region radius is somewhat simple. In this paper, we develop and combine a new radius updating rule with this method. For most test problems, the number of function evaluations is reduced significantly. The experiments demonstrate the effectiveness of the improvement through our algorithm.

Info:

Periodical:

Edited by:

Zhou Mark

Pages:

926-931

DOI:

10.4028/www.scientific.net/AMM.52-54.926

Citation:

Q. H. Zhou et al., "A Note on Wedge Trust Region Radius Update", Applied Mechanics and Materials, Vols. 52-54, pp. 926-931, 2011

Online since:

March 2011

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Price:

$35.00

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