Training data generation apparatus, characteristic expression extraction system, training data generation method, and computer-readable storage medium

Abstract

The disclosed apparatus uses a training data generation apparatus, which generates training data used for creating characteristic expression extraction rules. The training data generation apparatusincludes: a training data candidate clustering unit, which clusters a plurality of training data candidates assigned labels indicating annotation classes based on feature values containing respective context information, and a training data generation unitwhich, by referring to each cluster obtained using the clustering results, obtains the distribution of the labels of the training data candidates within the cluster, identifies training data candidates that meet a preset condition based on the obtained distribution, and generates training data using the identified training data candidates.