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Adaptive variance scaling in continuous multi-objective estimation-of-distribution algorithms

Published: 07 July 2007 Publication History

Abstract

Recent research into single-objective continuous Estimation-of-Distribution Algorithms (EDAs)has shown that when maximum-likelihood estimationsare used for parametric distributions such as thenormal distribution, the EDA can easily suffer frompremature convergence. In this paper we argue thatthe same holds for multi-objective optimization.Our aim in this paper is to transfer a solutioncalled Adaptive Variance Scaling (AVS) from thesingle-objective case to the multi-objectivecase. To this end, we zoom in on an existing EDAfor continuous multi-objective optimization, theMIDEA, which employs mixturedistributions. We propose a means to combine AVSwith the normal mixture distribution, as opposedto the single normal distribution for which AVS wasintroduced. In addition, we improve the AVS schemeusing the Standard-Deviation Ratio(SDR) trigger. Intuitively put, variance scalingis triggered by the SDR trigger only ifimprovements are found to be far awayfrom the mean. For the multi-objective case,this addition is important to keep the variancefrom being scaled to excessively large values.From experiments performed on five well-knownbenchmark problems, the addition of SDR andAVS is found to enlarge the class of problems thatcontinuous multi-objective EDAs can solve reliably.

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cover image ACM Conferences
GECCO '07: Proceedings of the 9th annual conference on Genetic and evolutionary computation
July 2007
2313 pages
ISBN:9781595936974
DOI:10.1145/1276958
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 07 July 2007

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Author Tags

  1. adaptive variance scaling
  2. estimation of distribution algorithms
  3. evolutionary algorithms
  4. multi-objective optimization

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GECCO '07 Paper Acceptance Rate 266 of 577 submissions, 46%;
Overall Acceptance Rate 1,669 of 4,410 submissions, 38%

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  • (2021)An incremental-learning model-based multiobjective estimation of distribution algorithmInformation Sciences10.1016/j.ins.2021.04.011569(430-449)Online publication date: Aug-2021
  • (2020)An Estimation of Distribution Algorithm With Multi-Leader SearchIEEE Access10.1109/ACCESS.2020.29754688(37383-37405)Online publication date: 2020
  • (2019)Learning From a Stream of Nonstationary and Dependent Data in Multiobjective Evolutionary OptimizationIEEE Transactions on Evolutionary Computation10.1109/TEVC.2018.286549523:4(541-555)Online publication date: Aug-2019
  • (2017)An adaptive multiobjective estimation of distribution algorithm with a novel Gaussian sampling strategySoft Computing - A Fusion of Foundations, Methodologies and Applications10.1007/s00500-016-2323-721:20(6043-6061)Online publication date: 1-Oct-2017
  • (2016)MONEDAJournal of Global Optimization10.1007/s10898-016-0415-766:4(729-768)Online publication date: 1-Dec-2016
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