FEATURE WORD AUTOMATIC LEARNING SYSTEM, CONTENT LINKAGE TYPE ADVERTISEMENT DISTRIBUTION COMPUTER SYSTEM, RETRIEVAL LINKAGE TYPE ADVERTISEMENT DISTRIBUTION COMPUTER SYSTEM AND TEXT CLASSIFICATION COMPUTER SYSTEM, AND COMPUTER PROGRAM AND METHOD FOR THEM

摘要

PROBLEM TO BE SOLVED: To automatically lean a feature word corresponding to a merchandise category.

SOLUTION: This feature word automatic learning system for automatically learning a feature word corresponding to each merchandise category includes: a means for acquiring the maximum 1,000 items of Web texts by a retrieval engine 141 by using a category name as a query; a means 142a for extracting feature word candidates from the maximum 1,000 items of Web texts acquired by using the category name as a query; a means 144 for calculating relevancy between the extracted feature word candidates and the categories; and a feature word database 14 for storing, for each category, feature word candidates whose relevancy is higher than a prescribed threshold in association with a feature word corresponding to the category.

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