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AssigneeThe Regents of the University of California
InventorsAlex Aiken, Saul Schleimer, Joel Auslander, Daniel Wilkerson, Anthony Tomasic, Steve Fink
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Methods and related systems for indexing the contents of documents for comparison with the contents of other documents to identify matching content. A method for comparing the contents of a query document to the content on the World Wide Web is set forth. The contents of a query document are indexed and compared to content from the World Wide Web which is continuously retrieved and indexed. The method for indexing may comprise selecting substrings from the document, hashing the substrings to generate a plurality of hash values having a known range of values, selecting certain hash values to save from the generated hash values, and sorting the saved hash values. Methods for selecting certain hash values to save are set forth.
A method for comparing the contents of a query document to the content on the World Wide Web, the method comprising:
The method of 5, wherein said memory structure is a signature file.
The method of 6, wherein said step of creating a signature file which summarizes the selected hash values saved from a query document comprises:
A system for detecting partially or wholly duplicated documents on the World Wide Web comprising:
A method for comparing the contents of a query document to the content on the World Wide Web, the method comprising:
Dependencies are inferred from the claim text.