Computer system and method for generating interpretation sentence

A method for generating an interpretation sentence for interpreting an inference result of an inference model, the method configured to be executed by a computer system, wherein

• the computer system
• is connected to an inference system that receives input data including a plurality of features and performs an inference using an inference model, and
• stores a large-scale language model that receives an instruction sentence as an input and outputs an interpretation sentence for interpreting a result of the inference, and first text template information that stores first template data in which a characteristic of a contribution value indicating a magnitude of a contribution to the result of the inference of a feature in a group constituted with one or more features is associated with a template of the instruction sentence, and
• the method comprises:
• a first step of calculating, by the computer system, the contribution value of each of the plurality of features using the input data, the result of the inference, and the inference model;
• a second step of generating, by the computer system, a plurality of groups each constituted with one or more of the features;
• a third step of acquiring, by the computer system, for each of the plurality of groups, the first template data by referring to the first text template information based on the characteristic of the contribution value of the feature included in the group;
• a fourth step of generating, by the computer system, based on the acquired first template data and the feature included in the group, the instruction sentence to be input to the large-scale language model;
• and
• a fifth step of outputting, by the computer system, the interpretation sentence obtained by inputting the instruction sentence to the large-scale language model.