Optimizing two-level supersaturated designs using swarm intelligence techniques

Frederick Kin Hing Phoa, Ray Bing Chen, Weichung Wang, Weng Kee Wong

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Supersaturated designs (SSDs) are often used to reduce the number of experimental runs in screening experiments with a large number of factors. As more factors are used in the study, the search for an optimal SSD becomes increasingly challenging because of the large number of feasible selection of factor level settings. This article tackles this discrete optimization problem via an algorithm based on swarm intelligence. Using the commonly used E(s2) criterion as an illustrative example, we propose an algorithm to find E(s2)-optimal SSDs by showing that they attain the theoretical lower bounds found in previous literature. We show that our algorithm consistently produces SSDs that are at least as efficient as those from the traditional CP exchange method in terms of computational effort, frequency of finding the E(s2)-optimal SSD, and also has good potential for finding D3-, D4-, and D5-optimal SSDs. Supplementary materials for this article are available online.

Original languageEnglish
Pages (from-to)43-49
Number of pages7
JournalTechnometrics
Volume58
Issue number1
DOIs
Publication statusPublished - 2016 Jan 2

All Science Journal Classification (ASJC) codes

  • Statistics and Probability
  • Modelling and Simulation
  • Applied Mathematics

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