Predictor creation device and predictor creation method

A predictor creation method executed by a predictor creation device including a processor configured to execute a program and a storage device that stores the program,

• the predictor creation method comprising:
• the processor executing first acquisition processing of acquiring a calibration target ensemble predictor obtained by combining a plurality of predictors based on a training data set which is a combination of training data and ground truth data;
• the processor executing calculation processing of calculating a prediction basis characteristic related to a feature of the training data for each of the plurality of predictors;
• the processor executing second acquisition processing of acquiring an expected prediction basis characteristic related to the feature based on the prediction basis characteristic related to the feature as a result of outputting the prediction basis characteristic related to the feature calculated by the calculation processing;
• the processor executing determination processing of determining a combination coefficient of each of the plurality of predictors based on the prediction basis characteristic related to the feature and the expected prediction basis characteristic related to the feature acquired in the second acquisition processing;
• and
• the processor executing calibration processing of calibrating the calibration target ensemble predictor based on the combination coefficient determined by the determination processing.