Information processing device, information processing method, and non-transitory recording medium

An information processing method by an information processing device, the method comprising:

• acquiring, as indexes representing an exercise state of a certain subject, a value of a first parameter, and a value of a second parameter that is an index different from and having correlation with the first parameter;
• acquiring another first parameter that is the first parameter having a value that differs from the acquired value of the first parameter;
• deriving, based on the first parameter acquired in the acquiring of the first parameter, a first reference value as the second parameter in accordance with a model generated based on sets of a value of a third parameter as an input of the model and a value of a fourth parameter as an output of the model, the third parameter being a same type as the first parameter, the fourth parameter being a same type as the second parameter, the value of the third parameter and the value of the fourth parameter representing an exercise state of each of a plurality of subjects that is a same type as the certain subject;
• deriving, based on the acquired another first parameter, a second reference value as the second parameter in accordance with the model, and
• estimating, based on the acquired value of the second parameter, the first reference value, and the second reference value, the value of the second parameter that corresponds to the another first parameter.

A non-transitory recording medium storing a program that causes a computer to realize:

• an acquisition function for acquiring, as indexes representing an exercise state of a certain subject, a value of a first parameter, and a value of a second parameter that is an index different from and having correlation with the first parameter;
• a parameter acquisition function for acquiring another first parameter that is the first parameter having a value that differs from the value of the first parameter acquired by the acquisition function;
• a first deriving function for deriving, based on the first parameter acquired by the acquisition function, a first reference value as the second parameter in accordance with a model generated based on sets of a value of a third parameter as an input of the model and a value of a fourth parameter as an output of the model, the third parameter being a same type as the first parameter, the fourth parameter being a same type as the second parameter, the value of the third parameter and the value of the fourth parameter representing an exercise state of each of a plurality of subjects that is a same type as the certain subject;
• a second deriving function for deriving, based on the another first parameter acquired by the parameter acquisition function, a second reference value as the second parameter in accordance with the model;
• and
• a parameter estimation function for estimating, based on the value of the second parameter acquired by the acquisition function, the first reference value, and the second reference value, the value of the second parameter that corresponds to the another first parameter.