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We propose a tabu search algorithm for constructing χ2(D)-optimal mixed-level k-circulant supersaturated designs. The method of constructing designs is based on the cyclic development of a generator, which could be either a row or a column vector. Our algorithm was able to construct 19 new χ2(D)-optimal mixed-level k-circulant supersaturated designs. It also found all χ2(D)-optimal k-circulant designs...
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