Concept matching of natural language queries with a database of document concepts
September 8, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesFinite state automaton with multiple state types Automated information input, storage, and retrieval system Office correspondence storage and retrieval system Retrieval of related linked linguistic expressions including synonyms and antonyms Digital data processing method and means for word classification by pattern analysis Locating digital coded words which are both acceptable misspellings and acceptable inflections of digital coded query words Keyword search automatic limiting method Indexing subject-locating method Artificial intelligence system Natural-language interface generating system InventorAssigneeApplicationNo. 118033 filed on 09/08/1993US Classes:707/4Query formulation, input preparation, or translationExaminersPrimary: Black, Thomas G.Assistant: Amsbury, Wayne Attorney, Agent or FirmInternational ClassG06F 017/30AbstractA computer implemented process for creating a search query for an information retrieval system in which a database is provided containing a plurality of stopwords and phrases. A natural language input query defines the composition of the text of documents to be identified. Each word of the natural language input query is compared to the database in order to remove stopwords from the query. The remaining words of the input query are stemmed to their basic roots, and the sequence of stemmed words in the list is compared to phrases in the database to identify phrases in the search query. The phrases are substituted for the sequence of stemmed words from the list so that the remaining elements, namely the substituted phrases and unsubstituted stemmed words, form the search query. The completed search query elements are query nodes of a query network used to match representation nodes of a document network of an inference network. The database includes as options a topic and key database for finding numerical keys, and a synonym database for finding synonyms, both of which are employed in the query as query nodes.Other References
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