PREDICTION SYSTEM, INFORMATION PROCESSING DEVICE, AND INFORMATION PROCESSING PROGRAM

A prediction system according to an aspect includes a control operation unit configured to execute a control operation for controlling a control target, a predicted value acquisition unit configured to acquire a predicted value by inputting, to a prediction model, a process value including one or a plurality of state values among state values that can be referenced by the control operation unit, a prediction model generation unit configured to generate the prediction model on a basis of a tree learning algorithm, and a prediction model evaluation unit configured to evaluate the prediction model. The prediction model evaluation unit includes an execution time acquisition unit configured to acquire each of first and second execution times that are times taken for outputting the predicted value in response to input of first and second data to the prediction model, a maximum execution time calculation unit configured to calculate a maximum execution time of the prediction model on the basis of the first and second execution times acquired by the execution time acquisition unit, and an evaluation unit configured to evaluate the prediction model on the basis of a calculation result from the maximum execution time calculation unit.