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Optimization and Engineering

, Volume 9, Issue 4, pp 311–339 | Cite as

An adaptive radial basis algorithm (ARBF) for expensive black-box mixed-integer constrained global optimization

  • Kenneth HolmströmEmail author
  • Nils-Hassan Quttineh
  • Marcus M. Edvall
Article

Abstract

Response surface methods based on kriging and radial basis function (RBF) interpolation have been successfully applied to solve expensive, i.e. computationally costly, global black-box nonconvex optimization problems. In this paper we describe extensions of these methods to handle linear, nonlinear, and integer constraints. In particular, algorithms for standard RBF and the new adaptive RBF (ARBF) are described. Note, however, while the objective function may be expensive, we assume that any nonlinear constraints are either inexpensive or are incorporated into the objective function via penalty terms. Test results are presented on standard test problems, both nonconvex problems with linear and nonlinear constraints, and mixed-integer nonlinear problems (MINLP). Solvers in the TOMLAB Optimization Environment (http://tomopt.com/tomlab/) have been compared, specifically the three deterministic derivative-free solvers rbfSolve, ARBFMIP and EGO with three derivative-based mixed-integer nonlinear solvers, OQNLP, MINLPBB and MISQP, as well as the GENO solver implementing a stochastic genetic algorithm. Results show that the deterministic derivative-free methods compare well with the derivative-based ones, but the stochastic genetic algorithm solver is several orders of magnitude too slow for practical use. When the objective function for the test problems is costly to evaluate, the performance of the ARBF algorithm proves to be superior.

Keywords

Global optimization Radial basis functions Response surface model Surrogate model Expensive function CPU-intensive Optimization software Splines Mixed-integer nonlinear programming constraints 

Abbreviations

RBF

Radial basis function

CGO

Costly global optimization

MINLP

Mixed-integer nonlinear programming

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Kenneth Holmström
    • 1
    Email author
  • Nils-Hassan Quttineh
    • 1
  • Marcus M. Edvall
    • 2
  1. 1.Department of Mathematics and PhysicsMälardalen UniversityVästeråsSweden
  2. 2.Tomlab Optimization Inc.PullmanUSA

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