INFORMATION RETRIEVAL SYSTEM, INFORMATION RETRIEVAL METHOD, STRUCTURAL ANALYSIS METHOD OF HTML DOCUMENT, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To effectively realize a flexible information retrieval by multiple strategies in response to an intended purpose of information in an information retrieval using a computer. SOLUTION: This system is provided with a document structure analyzing part 12 which analyzes the structure of a HTML document in consideration of a meaning in a prescribed web page, a level-of-importance calculation part 13 which calculates the level of importance of other web site which is linked from this web page according to a prescribed strategy, and a crawling execution part 14 which crawls a website according to the level of importance calculated by the level-of-importance calculation part 13. COPYRIGHT: (C)2004,JPO