Supersaturated designs of projectivity P=3 or near P=3 |
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Authors: | John Tyssedal Oddgeir Samset |
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Affiliation: | 1. Department of Mathematical Sciences, The Norwegian University of Science and Technology, 7491 Trondheim, Norway;2. Elkem Salten, NO-8226 Straumen, Norway |
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Abstract: | Supersaturated designs offer a potentially useful way to investigate many factors in few experiments i.e. typical screening situations. Their design properties have mainly been evaluated based on their ability to identify and estimate main effects. Projective properties have received little attention. In this paper we show how to construct two-level supersaturated designs for 2(n−2) factors in n runs (n a multiple of four) of projectivity P=3 or near projectivity P=3 from orthogonal non-regular two-level designs. The designs obtained also have favourable properties such as low maximum absolute value of the inner product between a main effect column and a two-factor interaction column and relatively few types of different projections onto subsets consisting of three factor columns. |
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Keywords: | Hadamard matrices Projection properties Screening designs |
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