An information processing device includes an acquisition unit that acquires measurement signals measured at a plurality of measurement points on a laid optical fiber cable, a prediction unit that predicts a predictive environment representing the environment of each of the measurement points from each of the measurement signals by using a prediction model set in advance, and a correction unit that corrects the predictive environment on the basis of a comparison between the predictive environment of each of the measurement points and the measurement signal measured at each of the measurement points.