Appeal 2009-3941
Application 10/334,370
Appellants invented a method and system for document analysis and
retrieval by using an algorithm for determining categories and document
links relating to a given document (Specification 3). An understanding of
the invention can be derived from a reading of independent claim 1 and
dependent claim 5, which are reproduced as follows:
1. A method for document analysis and retrieval, comprising
the steps of:
receiving a document having text therein from a host of a first
computing system;
generating document keys associated with said text from
analysis of said text, each said document key selected from the group
consisting of a keyword of said text and a keyphrase of said text;
providing a document taxonomy having categories, each
category having category keys, each said category key selected from
the group consisting of a keyword of said category and a keyphrase of
said category;
comparing the category keys of each category with said
document keys to make a determination of a distance between the
document and each category as a measure of how close the document
is to each category; and
returning a subset of said categories to said host, wherein said
subset of said categories reflects said determination.
5. The method of claim 1, wherein said comparing
comprises computing said distance for each category as a dot product
of a vector of said document keys and a vector of said category keys
for each category.
The Examiner relies on the following prior art references:
Yanagihara US 5,715,443 Feb. 3, 1998
Brown US 2002/0099730 A1 Jul. 25, 2002
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