Patent ID: 8805752

Claim:
A learning device comprising: a processor; a selecting unit configured to perform a plurality of selection processes of selecting a plurality of groups including one or more learning samples from a learning sample storage unit that stores a plurality of learning samples in which respective learning samples are classified into any one of a plurality of categories; a learning unit configured to learn a classification metric that classifies the plurality of groups for each of the plurality of selected groups and obtains a set of a classification metric; and an evaluating unit configured to acquire two or more evaluation samples of different categories from an evaluation sample storage unit that stores a plurality of evaluation samples in which respective evaluation samples are classified into any one of a plurality of categories, evaluate the classification metric included in the set of the classification metric using the two or more acquired evaluation samples, acquire a plurality of classification metric corresponding to the evaluation results from the set of the classification metric, and thereby generate an evaluation metric including the plurality of classification metric.