Information processing apparatus, information processing method, and recording medium

Abstract

An information processing apparatusincludes: a transformation unitconfigured to transform a plurality of tuples of feature vector data XV in a presentation space into a plurality of tuples of latent vector data ZV in a latent space; an extraction unitconfigured to extract, based on the plurality of tuples of latent vector data, feature vector data having a shorter distance from query data DQ in the latent space than the other feature vector data, as neighbor data DNfrom among the plurality of tuples of feature vector data; a generation unitconfigured to generate, based on the neighbor data, a local model LM that outputs an estimation value dpof a latent distance dwhen difference information Vis inputted, the latent distance being a distance between the query data and the neighbor data in the latent space, the difference information being related to a difference, for each element of the features, between the query data and the neighbor data in the presentation space; and a calculation unitconfigured to calculate, based on the local model and the difference information, an element contribution degree crepresenting a magnitude of an effect that each element of the features of the neighbor data exerts on the latent distance.