Patent ID: 8694289
Filing Date: 2014-04-08
Classification: G06F

Abstract:
1. An apparatus comprising: a memory device storing, among M coefficients and input variables making up a model formula expressing an object to be modeled, statistical values associated with the coefficients and obtained from a first data group; an input unit that inputs a second data group as a combination of an input value and an output value with respect to the object to be modeled, wherein the second data group includes N data and N is smaller than M; a first obtaining unit that obtains an arithmetic expression expressing a first probability that expresses a probability of occurrence of the model formula from the statistical values obtained from the first data group and is defined by the statistical values and the coefficients; a second obtaining unit that obtains an arithmetic expression expressing a second probability that represents a likelihood of the model formula from the second data group and is defined by the input variables and output variables; a setting unit that sets an arithmetic expression expressing a joint probability by joining the arithmetic expression expressing the first probability and the arithmetic expression expressing the second probability; a determining unit that, based on the arithmetic expression expressing the joint probability, determines values of the coefficients to maximize the joint probability by giving the second data group input by the input unit to the input variables and the output variables of the joint probability; and an output unit that outputs the values of the coefficients determined by the determining unit in relation to the model formula; wherein each of the M coefficients is obtained by a partial differentiation with respect to the each coefficient.