Subject discriminating device, subject discriminating method, and non-transitory computer-readable medium

A subject discriminating method which is performed by a subject discriminating device, comprising:

• acquiring a first data set corresponding to change of physiological information of a subject over time and a second data set corresponding to change of the physiological information of the subject over time, the second data set being acquired at a timing different from an acquisition timing of the first data set;
• generating a discriminator having learned one of the first data set and the second data set as training data;
• calculating a first degree of similarity using input information for a data set which is the first data set or the second data set and has not been used to generate the discriminator and first output information which is obtained by inputting the data set which is not used to generate the discriminator to the discriminator;
• and
• determining whether the first data set and the second data set have been acquired from a same subject based on the first degree of similarity.

A computer-readable non-transitory medium storing a program for causing a computer to execute a process, the process comprising:

• acquiring a first data set corresponding to change of physiological information of a subject over time and a second data set corresponding to change of the physiological information of the subject over time, the second data set being acquired at a timing different from an acquisition timing of the first data set;
• generating a discriminator having learned one of the first data set and the second data set as training data;
• calculating a first degree of similarity using input information for a data set which is the first data set or the second data set and has not been used to generate the discriminator and first output information which is obtained by inputting the data set which is not used to generate the discriminator to the discriminator;
• and
• determining whether the first data set and the second data set have been acquired from a same subject based on the first degree of similarity.