Patent ID: 8131657

Claim:
An information processing device for taking input data and an existing feature amount corresponding to said input data as input, and generating a target feature amount computational expression for outputting a target feature amount corresponding to said input data, comprising: feature amount extraction expression list generating means configured to generate a feature amount extraction expression list including a plurality of feature amount extraction expressions made up of a plurality of operators by updating said feature amount extraction expression list of the previous generation using a genetic algorithm based on the evaluation values of said feature amount extraction expressions, regarding a plurality of feature amount extraction expressions included in said feature amount extraction expression list of the previous generation as genes; feature amount computing means configured to input actual data supplied as tutor data to each feature amount extraction expression included in said feature amount extraction expression list to compute a plurality of feature amounts corresponding to said actual data; target feature amount computational expression generating means configured to employ said plurality of feature amounts corresponding to said computed actual data, and an existing feature amount corresponding to said actual data supplied as tutor data for the same rank to generate said target feature amount computational expression by machine learning for estimating a target feature amount corresponding to said actual data supplied as tutor data; evaluation value computing means configured to compute said evaluation value of each feature amount extraction expression included in said feature amount extraction expression list; and optimizing means configured to optimize each of plurality of feature amount extraction expressions included in said feature amount extraction expression list of the final generation.