INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, PROGRAM FOR INFORMATION PROCESSING DEVICE, AND RECORDING MEDIUM

摘要

The disclosed information processing device: obtains a first web page and a second web page (S1); extracts text data written in each web page (S2); carries out linguistic analysis on the extracted text data and extracts feature terms from each web page (S3); calculates the degree of similarity between the first web page and the second web page on the basis of the number of web page occurrences in which the feature terms appear in a range of web sites for each web page (S7); and if the degree of similarity is at least a predetermined value, determines that the first web page and the second web page are web pages which deal with a similar subject (S8).