Variance reduction in population-based optimization: Application to unit commitment

Jérémie DECOCK, Jialin LIU, Olivier TEYTAUD

Research output: Book Chapters | Papers in Conference ProceedingsConference paper (refereed)Referred Conference Paperpeer-review

Abstract

We consider noisy optimization and some traditional variance reduction techniques aimed at improving the convergence rate, namely (i) common random numbers (CRN), which is relevant for population-based noisy optimization and (ii) stratified sampling, which is relevant for most noisy optimization problems. We present artificial models of noise for which common random numbers are very efficient, and artificial models of noise for which common random numbers are detrimental. We then experiment on a desperately expensive unit commitment problem. As expected, stratified sampling is never detrimental. Nonetheless, in practice, common random numbers nonetheless provided, by far, most of the improvement.

Original languageEnglish
Title of host publicationGECCO 2015 : Companion Publication of the 2015 Genetic and Evolutionary Computation Conference
EditorsSara SILVA
PublisherAssociation for Computing Machinery, Inc
Pages1377-1378
Number of pages2
ISBN (Electronic)9781450334884
DOIs
Publication statusPublished - 11 Jul 2015
Externally publishedYes
Event17th Genetic and Evolutionary Computation Conference, GECCO 2015 - Madrid, Spain
Duration: 11 Jul 201515 Jul 2015

Conference

Conference17th Genetic and Evolutionary Computation Conference, GECCO 2015
Country/TerritorySpain
CityMadrid
Period11/07/1515/07/15

Keywords

  • Common random numbers
  • Noisy optimization
  • Stratified sampling
  • Variance reduction

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