Enhancing Efficiency of Hierarchical BOA Via Distance-Based Model Restrictions

  • Authors:
  • Mark Hauschild;Martin Pelikan

  • Affiliations:
  • Missouri Estimation of Distribution Algorithms Laboratory, 320 CCB, University of Missouri in St. Louis/ One University Blvd., St. Louis, MO 63121;Missouri Estimation of Distribution Algorithms Laboratory, 320 CCB, University of Missouri in St. Louis/ One University Blvd., St. Louis, MO 63121

  • Venue:
  • Proceedings of the 10th international conference on Parallel Problem Solving from Nature: PPSN X
  • Year:
  • 2008

Quantified Score

Hi-index 0.00

Visualization

Abstract

This paper analyzes the effects of restricting probabilistic models in the hierarchical Bayesian optimization algorithm (hBOA) by defining a distance metric over variables and disallowing dependencies between variables at distances greater than a given threshold. We argue that by using prior problem-specific knowledge, it is often possible to develop a distance metric that closely corresponds to the strength of interactions between variables. This distance metric can then be used to speed up model building in hBOA. Three test problems are considered: 3D Ising spin glasses, random additively decomposable problems, and the minimum vertex cover.