THESAURUS DATABASE BUILDING SYSTEM

摘要

The present invention relates to a thesaurus database building system for searching a similar technology, and especially, to a thesaurus database building system for matching expressions of different languages about the same target in a patent document and expanding a range of thesaurus by using the matched languages as a medium, thereby, expanding a range of inquiry word for searching a similar technology. The thesaurus database building system comprises: a patent information database in which texts are recorded wherein the texted are described in at least two languages; an index word extracting module (20) for extracting an index word from the patent information database; a thesaurus database (42) in which similar words having related meanings correspond to each other; a candidate thesaurus database (40); and a thesaurus building module (30).