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. 10, 2013
Filed:
Jul. 01, 2008
Stephen C. Morgana, Rochester, NY (US);
John C. Handley, Fairport, NY (US);
Stephen C. Morgana, Rochester, NY (US);
John C. Handley, Fairport, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
Frequency based keyword extraction method and system utilizing a statistical measure is disclosed which generates keywords within a page and/or document that can distinguish the document from an average document. A simple frequency threshold parameter can be utilized to determine a number of common stop words if a word in the document possesses a frequency in a corpus that is more than the threshold parameter. A statistical confidence interval of the frequency in the document can be compared against a frequency confidence interval of the word in the corpus. The extracted keyword possesses a greater intra-document frequency confidence interval than the frequency confidence interval of the word within the corpus. A statistical hypothesis test can also be utilized to determine the keyword by calculating a test statistic and testing whether the test statistic is greater than some threshold.