Abstract
The goal of this paper is to show that the use of minimum Frobenius norm quadratic models can improve the performance of direct-search methods. The approach taken here is to maintain the structure of directional direct-search methods, organized around a search and a poll step, and to use the set of previously evaluated points generated during a direct-search run to build the models. The minimization of the models within a trust region provides an enhanced search step. Our numerical results show that such a procedure can lead to a significant improvement of direct search for smooth, piecewise smooth, and noisy problems.
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Support has been provided by FCT under grants POCI/MAT/59442/2004 and PTDC/MAT/64838/2006.
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Custódio, A.L., Rocha, H. & Vicente, L.N. Incorporating minimum Frobenius norm models in direct search. Comput Optim Appl 46, 265–278 (2010). https://doi.org/10.1007/s10589-009-9283-0
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DOI: https://doi.org/10.1007/s10589-009-9283-0