METHODS AND APPARATUS FOR SIMILARITY TEXT SEARCH BASED ON CONCEPTUAL INDEXING

摘要

In one aspect of the invention, a method of performing a conceptual similari ty search comprises the steps of generating one or more conceptual word-chains from on e or more documents to be used in the conceptual similarity search; building a conceptual index of documents with the one or more word-chains; and evaluating a similarity query using the conceptual index. The evaluating step preferably returns one or more of the closest documents resulting from the search; one or more matching word-chains in the one or more documents; and one or mo re matching topical words of the one or more documents.