MODEL ESTIMATION SYSTEM, MODEL ESTIMATION METHOD, AND MODEL ESTIMATION PROGRAM

摘要

An input unit 81 inputs action data, in which a state of an environment and an action performed under the environment are associated with each other, a prediction model for predicting a state according to the action on the basis of the action data, and explanatory variables of objective functions for evaluating the state and the action together. A structure setting unit 82 sets a branch structure in which the objective functions are placed at lowermost nodes of a hierarchical mixtures of experts model. A learning unit 83 learns the objective functions including the explanatory variables and branching conditions at nodes of the hierarchical mixtures of experts model, on the basis of the states predicted with the prediction model applied to the action data divided in accordance with the branch structure.