TEXT MINING DEVICE, TEXT MINING METHOD, TEXT MINING PROGRAM, AND RECORDING MEDIUM

摘要

Provided is a text mining device that performs an analysis properly with respect to a difference between plural related document data. Equipped are an element extracting section 140 that extracts language elements from related two or more document data respectively; a differential processing section 150 that extracts a difference between the document data by comparing the elements between the document data which were extracted by the element extracting means 140; and a statistical processing section 170 that performs statistical processing on the difference extracted by the differential processing section 150. The differential processing section 150 has: element associating section 151 that associates respective elements which are in identical, similar, synonymous, or analogous relation by comparing the elements of the document data between the document data which were extracted by the element extracting section 140; and differential element extracting section 152 that extracts an element with no corresponding element of a pair in the association by the element association section 151.