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Row-column arrangements of regular and nonregular fractional factorial two-level designs
  • Quality

Row-column arrangements of regular and nonregular fractional factorial two-level designs

Publication:
Journal of Quality Technology
Date:
July 2020
Issue:
Volume 52 Issue 3
Pages:
pp. 304-322
Author(s):
Vo-Thanh, Nha, Schoen, Eric D., Goos, Peter

Abstract

Row–column designs involve two crossed blocking factors. We propose three combinatorial criteria and a criterion based on D-efficiency to identify optimal row–column arrangements of fractional factorial two-level designs. We search for such arrangements in complete catalogs of 16-run and 24-run orthogonal arrays of strength 2 with two-level treatment factors and two multi-level blocking factors. One of the combinatorial criteria is a good surrogate for the efficiency-based criterion. For searching similar catalogs of strength-3 orthogonal arrays, we adapt the criteria and conduct a complete search for optimal row–column arrangements in catalogs with 64 and 72 runs.

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