Affinity calculation apparatus, affinity calculation method, and computer program

摘要

An affinity calculation apparatus for calculating a degree of affinity between a first element and a second element that are not directly relevant among three or more elements includes: an extraction section configured to extract, from a document, relevance of each of pairs of two directly relevant elements of the three or more elements; and a calculation section configured to calculate the degree, of the pairs, based on the relevance of each of pairs of two elements of the first element, the second element, and one or more intermediate elements that lie between the first element and the second element.