Patent ID: 8195433
Filing Date: 2012-06-05
Classification: G06F,G06N

Abstract:
1. An optimum value search apparatus used in designing, analyzing, or testing a device having a plurality of factors that have effects on a characteristic, comprising: a computer and a recording medium, the recording medium storing a program that causes the computer to: prepare an orthogonal array which sets level values obtained from initial values of the factors to coordinates of a two-dimensional table including a matrix of the characteristics and the factors; select, from the characteristics on the orthogonal array, a combination of level values of the factors to maximize a Signal-to-Noise (S/N) ratio as a function based on the level values of the factors of a single characteristic and a standard deviation with reference to the level values of the factors of the single characteristic; reset, in the orthogonal array, the level values of the factors in the characteristic corresponding to the selected combination; and search for an optimum value as a most excellent one of the characteristic values by repeatedly selecting a combination of level values after resetting the level values.