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. 13, 2011
Filed:
Jun. 14, 2010
Paul Deane, Lawrenceville, NJ (US);
Paul Deane, Lawrenceville, NJ (US);
Educational Testing Service, Princeton, NJ (US);
Abstract
A method and system for determining a lexical association of phrasal terms are described. A corpus having a plurality of words is received, and a plurality of contexts including one or more context words proximate to a word in the corpus is determined. An occurrence count for each context is determined, and a global rank is assigned based on the occurrence count. Similarly, a number of occurrences of a word being used in a context is determined, and a local rank is assigned to the word-context pair based on the number of occurrences. A rank ratio is then determined for each word-context pair. A rank ratio is equal to the global rank divided by the local rank for a word-context pair. A mutual rank ratio is determined by multiplying the rank ratios corresponding to a phrase. The mutual rank ratio is used to identify phrasal terms in the corpus.