Information processing device, information processing method, and information processing program

Abstract

An information processing device (100) is provided with a normality / abnormality diagnosis unit (130), a parameter estimation unit (140), and an integration unit (160). The normality / abnormality diagnosis unit (130) inputs a feature amount corresponding to target input data, which corresponds to time-series data indicating frequency, into a normality / abnormality diagnosis model to obtain target output data and an estimated value of a target physical parameter, and determines whether or not an abnormality is present in equipment to be diagnosed on the basis of the target output data. The parameter estimation unit (140) inputs the feature amount corresponding to the target input data into a parameter estimation model to obtain an estimated value of the target physical parameter. The integration unit (160) outputs information in accordance with: the difference between the estimated value of the target physical parameter according to the normality / abnormality diagnosis model and the estimated value of the target physical parameter according to the parameter estimation model; and the result of determining whether or not an abnormality is present in the equipment to be diagnosed.