ACTION DECIDING METHOD FOR INFERENCE DEVICE, AND DEVICE FOR EXECUTING THE METHOD

PROBLEM TO BE SOLVED: To obtain a decision result equivalent to that obtained when a human being describes the loss value by securing the correspondence between the proposition of an action pair and the small real number value when the similarity is high to the optimum action pair, leading the expected loss value of an action based on the loss value and the posterior probability value, and selecting an action of the least expected loss value. SOLUTION: A loss data processing part 2 sends a pair of propositions to a similarity calculation part 3 to secure the correspondence between the propositions and the similarity of >=0.0 and =0.0 and