Dictionary generation device, dictionary generation method, dictionary generation program and computer-readable recording medium storing same program

Abstract

A dictionary generation device according to one embodiment includes a determination unit configured to (A) refer to an item database that stores a plurality of records containing an item name/item description including a noun sequence, an item category, and a shop selling the item as fields and determine whether the noun sequence included in the item name/item description of each record is set corresponding to the item category, (B) count the number of selling shops in a record containing the noun sequence for each item category and calculate a shop intensity of each noun sequence based on the counted number of selling shops, (C) determine whether one item category uniquely derived from the noun sequence exists based on the shop intensity for each item category, and (D) determine the noun sequence as a definitive category word when the one item category exists.