Similarity degree calculator, authorization system, similarity degree calculation method, similarity degree calculation program, and method for generating similarity degree calculation program

(canceled)

A method for generating a similarity degree calculation program comprising:

• causing, by a computer, a model network to be learned, which has a first calculation unit having N feature calculation models and a second calculation unit having a model with a calculation result of the first calculation unit as an input to use a learning data set where data is set as an input sample and a one-hot vector indicating a class to which the data belongs among a plurality of classes is set as an output sample, and to output a vector indicating a posterior probability of the class to which the data belongs on the basis of the input data;
• and
• generating, by the computer, a similarity degree calculation program by combining the N learned feature calculation model and similarity degree calculation functions for obtaining a similarity degree between the first data and the second data on the basis of calculation results of the N feature calculation models for the first data and calculation results of the N feature calculation models for second data.