Optimality of pairwise blocked definitive screening designs

Optimality of pairwise blocked definitive screening designs
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成对封闭明确筛选设计的最优性

DOI:
10.1007/s10463-015-0510-4
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发表时间:
2016-06
影响因子:
1
通讯作者:
Li Kang
Li Kang
中科院分区:
数学4区
文献类型:
--
作者:
Wang Yaping;Ai Mingyao;Li Kang

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连续筛选设计是一类新的三水平设计,在响应面方法中表现出优于经典中心复合设计的上级效果。它们可以通过将会议矩阵插入到它们的折叠结构中来构造。如何以最优的方式对确定性筛选设计进行区组化具有重要的现实意义,但目前还缺乏系统的理论研究。通常采用成对区组方案,将每对折叠运行分配到同一区组中。在本文中,这种成对分块方案的最优性进行了深入的理论研究。结果表明,在由主效应、二次效应和区组效应组成的线性模型下,在所有平衡区组方案中,两两区组确定性筛选设计对主效应是普适的。此外,这样的分区设计被证明有相同的广义字长模式,也被证明是最优的广义最小像差准则下。
Definitive screening designs are a new class of three-level designs which are shown superior to the classical central composite designs in response surface methodology. They can be constructed by inserting conference matrices into their fold-over structures. How to block definitive screening designs in an optimal way is of practical importance, and lacks systematic theoretical research up to now. Pairwise blocking schemes are usually adopted which assign each pair of fold-over runs into the same block. In this paper, the optimality of such pairwise blocking schemes is thoroughly studied in theory. It is shown that under the linear model consisting of main effects, quadratic effects and block effects, pairwise blocked definitive screening designs are universally optimal for the main effects among all balanced blocking schemes. Moreover, such blocked designs are proved to have the same generalized wordlength pattern and are also shown optimal under the generalized minimum aberration criterion.
使用会议矩阵构建明确的筛选设计
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