Document retrieval system
May 25, 2010. 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 ReferencesAssociative information retrieval continuously guided by search status feedback Method and apparatus for information storage and retrieval Information retrieval device Keyword search automatic limiting method Fast response for switched data networks Information retrieval system equipped with video disk Information storage and retrieval system and method Textual comparison system for locating desired character strings and delimiter characters Generic key for indexing and searching user data in a digital information storage and retrieval device Speed typing apparatus and method InventorAssigneeApplicationNo. 528490 filed on 05/25/1990US Classes:707/5, Query augmenting and refining (e.g., inexact access)706/52, Reasoning under uncertainty (e.g., fuzzy logic)706/900, FUZZY LOGIC706/934, Information retrieval or information management707/4, Query formulation, input preparation, or translation707/7SortingExaminersPrimary: Fleming, Michael R.Assistant: Ray, Gopal C. Attorney, Agent or FirmInternational ClassesG06F 015/40G06F 007/22 Foreign Application Priority Data1989-05-29 JPAbstractA document retrieval system which includes a keyword connection table making section, a document accuracy calculating section, a document sorting section and a learning control section. The document accuracy calculating section calculates a document accuracy for each of the output documents in a prescribed manner by reference to a keyword connection table file. The document sorting section sorts the output documents in downward sequential order of the document accuracy. The learning control section serves to modify the weight of each keyword connection in a prescribed manner after the sorted output documents are given responsive to a query by a user, allowing the user make an evaluation on whether each document accuracy of the output documents is in conformity with the query. The document retrieval system is capable of providing the user with multiple choices from a numerical value between 0 and 1 in terms of a real number in making an evaluation on whether each document accuracy of the output documents is actually in conformity with the query.Other References
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