CONCEPT-BASED SEARCH AND RETRIEVAL SYSTEM

摘要

A concept-based indexing and search system (100) indexes collections of documents (180) with ontology-based predicate structures (120, 140) through automated and/or human-assisted methods. The system extracts the concepts behind user queries to return only those documents that match those concepts. The concept based search and retrieval system comprehends the intent behind a query from a user, and returns results matching that intent. The system can perform off-line searches for unanswered user queries and notify the user when a match is found.