THE QUERY/DOCUMENT TOPIC CATEGORY TRANSITION ANALYSIS SYSTEM AND METHOD AND THE QUERY EXPANSION BASED INFORMATION RETRIEVAL SYSTEM AND METHOD

摘要

PURPOSE: inquiry/document subject matter classification transition analysis system and method, its query expansion provided based on information retrieval system it is a kind of suitable for predicting the keyword expansion user query of document subject matter classification related subject categories search, so that having searched for document it is interested to convert user extremely is reflection. ;CONSTITUTION: the inquiry of subject categories classifier (11) classification scheme Query input. A kind of body-building determines document history information assemble data library (12) storage and query text/document information. Subject categories transition map data base (13) stores subject categories transition mapping. Each subject categories of each subject categories database (14) storage virtual document group of virtual document group. The document of search result is provided to server (17) according to representing keyword rank order by search engine (18). ;The 2011 of copyright KIPO submissions