Abstract
The objective of this paper is to study the issue of employing the uniformity criterion measured by the wrap-around L 2-discrepancy to assess the optimal foldover plans for three-level designs. For three-level fractional factorials as the original designs, the general foldover plan and combined design under a foldover plan are defined, some theoretical properties of the defined foldover plans are obtained, a tight lower bound of the wrap-around L 2-discrepancy of combined designs under a general foldover plan is also obtained, which can be used as a benchmark for searching optimal foldover plans. For illustration of the usage of our theoretical results, a catalog of optimal foldover plans for uniform initial designs with s three-level factors is tabulated, where 2 ⩽ s ⩽ 11.
Similar content being viewed by others
References
Ai M Y, Hickernell F J, Lin D K J. Optimal foldover plans for regular s-level fractional factorial designs. Statist Probab Lett, 2008, 78: 896–903
Box G E P, Hunter W G, Hunter J S. Statistics for Experiments. New York: John Wiley & Sons, 1978
Fang K T, Lin D K J, Qin H. A note on optimal foldover design. Statist Probab Lett, 2003, 62: 245–250
Fang K T, Lu X, Winker P. Lower bounds for centered and wrap-around L 2-discrepancies and construction of uniform designs by threshold accepting. J Complexity, 2003, 19: 692–711
Fang K T, Tang Y, Yin J X. Lower bounds for wrap-around L 2-discrepancy and constructions of symmetrical uniform designs. J Complexity, 2005, 21: 757–771
Hickernell F J. Lattice rules: How well do they measure up. In: Hellekalek P, Larcher G, eds. Random and Quasi-Random Point Sets. New York: Springer-Verlag, 1998, 109–166
Lei Y J, Ou Z J, Qin H. Some properties of foldover of regular (s r)×s n fractional factorial designs (in Chinese). Acta Math Sci Ser A Chin Ed, 2011, 31: 978–982
Lei Y J, Ou Z J, Qin H, et al. A note on lower bound of centered L 2-discrepancy on combined designs. Acta Math Sin (Engl Ser), 2012, 28: 793–800
Lei Y J, Qin H, Zou N. Some lower bounds of centered L 2-discrepancy on foldover designs (in Chinese). Acta Math Sci Ser A Chin Ed, 2010, 30: 1555–1561
Li F, Jacroux M. Optimal foldover plans for blocked 2m−k fractional factorial designs. J Statist Plann Inference, 2007, 137: 2439–2452
Li H, Mee R W. Better foldover fractions for resolution III 2k-p designs. Technometrics, 2002, 44: 278–283
Li P F, Liu M Q, Zhang R C. Choice of optimal initial designs in sequential experiments. Metrika, 2005, 61: 127–135
Li W, Lin D K J. Optimal foldover plans for two-level fractional factorial designs. Technometrics, 2003, 45: 142–149
Li W, Lin D K J, Ye K Q. Optimal foldover plans for two-level nonregular orthogonal designs. Technometrics, 2003, 45: 347–351
Montgomery J D, Runger G C. Foldover of 2k-p resolution IV experimental designs. J Qual Technol, 1996, 28: 446–450
Ou Z J, Chatterjee K, Qin H. Lower bounds of various discrepancies on combined designs. Metrika, 2011, 74: 109–119
Qin H, Chatterjee K, Ou Z J. A lower bound for the centered L 2-discrepancy on combined designs under the asymmetric factorials. Statistics, 2013, 47: 992–1002
Wang B, McLeod R G, Brewster J F. A note on the selection of optimal foldover plans for 16- and 32-run fractional factorial designs. J Statist Plann Inference, 2010, 140: 1497–1500
Ye K Q, Li W. Some properties of blocked and unblocked foldover of 2k-p designs. Statist Sinica, 2003, 13: 403–408
Zhang A J, Fang K T, Li R Z, et al. Majorization framework for balanced lattice designs. Ann Statist, 2005, 33: 2837–2853
Zhou Y D, Ning J H. Lower bounds of the wrap-around L 2-discrepancy and relationships between MLHD and uniform design with a large size. J Statist Plann Inference, 2008, 138: 2330–2339
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ou, Z., Qin, H. & Cai, X. Optimal foldover plans of three-level designs with minimum wrap-around L 2-discrepancy. Sci. China Math. 58, 1537–1548 (2015). https://doi.org/10.1007/s11425-014-4936-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11425-014-4936-6