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On Simplicial Longest Edge Bisection in Lipschitz Global Optimization

  • Juan F. R. Herrera
  • Leocadio G. Casado
  • Eligius M. T. Hendrix
  • Inmaculada García
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8580)

Abstract

Simplicial subsets are popular in branch-and-bound methods for Global Optimization. Longest Edge Bisection is a convenient way to divide a simplex. When the number of dimensions is greater than two, irregular simplices (not all edges have the same length) may appear with more than one longest edge. In these cases, the first longest edge is usually selected. We study the impact of other selection rule of the longest edge to be bisected next on the development of a branch-and-bound algorithm to solve multidimensional Lipschitz Global Optimization instances. Experiments show a significant reduction in the number of evaluated simplices for most of the test problems.

Keywords

Longest Edge Bisection Branching rule Branch-and-bound Lipschitz optimization 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Juan F. R. Herrera
    • 1
  • Leocadio G. Casado
    • 1
  • Eligius M. T. Hendrix
    • 2
  • Inmaculada García
    • 2
  1. 1.Universidad de Almería (ceiA3)AlmeríaSpain
  2. 2.Universidad de MálagaMálagaSpain

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