Hypertext document retrieval system and method
February 5, 2017. 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 ReferencesUser interface system and method for traversing a database Concept matching of natural language queries with a database of document concepts System for adjusting hypertext links with weighed user goals and activities System of document representation retrieval by successive iterated probability sampling System for predicting documents relevant to focus documents by spreading activation through network representations of a linked collection of documents Patent #: 5835905 InventorAssigneeApplicationNo. 794425 filed on 02/05/1997US Classes:707/5, Query augmenting and refining (e.g., inexact access)707/10, Distributed or remote access715/501.1, Hypermedia715/513Structured document (e.g., HTML, SGML, ODA, CDA)ExaminersPrimary: Black, Thomas G.Assistant: Loomis, John C. Attorney, Agent or FirmInternational ClassG06F 017/30AbstractA search engine for retrieving documents pertinent to a query indexes documents in accordance with hyperlinks pointing to those documents. The indexer traverses the hypertext database and finds hypertext information including the address of the document the hyperlinks point to and the anchor text of each hyperlink. The information is stored in an inverted index file, which may also be used to calculate document link vectors for each hyperlink pointing to a particular document. When a query is entered, the search engine finds all document vectors for documents having the query terms in their anchor text. A query vector is also calculated, and the dot product of the query vector and each document link vector is calculated. The dot products relating to a particular document are summed to determine the relevance ranking for each document.Other References
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