The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 1998
Filed:
Dec. 14, 1995
Francine R Chen, Menlo Park, CA (US);
John W Tukey, Princeton, NJ (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A method of automatically identifying drop words in a document image without performing character recognition to generate an ASCII representation of the document text. First, the document image is analyzed to identify word equivalence classes, each of which represents at least one word of the multiplicity of words included in the document. Second, for each word equivalence class, the likelihood that it is not a drop word is determined. Third, document length is analyzed to determine whether the document is short. For a short document, the number of word equivalence classes identified as drop words based upon their likelihood is proportional to document length. For long documents, a fixed number of word equivalence classes are identified as drop words based upon the likelihood that they are not drop words.