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Title: Sequential integer quadratic programming for generalized minimum aberration orthogonal arrays Authors:  Roberto Fontana - Politecnico di Torino (Italy) [presenting]
Abstract: Orthogonal Fractional Factorial Designs and in particular Orthogonal Arrays are frequently used in many fields of application, including medicine, engineering and agriculture. We present a methodology and an algorithm to find an orthogonal array, of given size and strength, that satisfies the generalized minimum aberration criterion. The methodology is based on the joint use of polynomial counting functions, complex coding of levels and algorithms for quadratic optimization and puts no restriction on the number of levels of each factor.