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Rapid automatic keyword extraction for information retrieval and analysis

United States Patent

March 6, 2012
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Methods and systems for rapid automatic keyword extraction for information retrieval and analysis. Embodiments can include parsing words in an individual document by delimiters, stop words, or both in order to identify candidate keywords. Word scores for each word within the candidate keywords are then calculated based on a function of co-occurrence degree, co-occurrence frequency, or both. Based on a function of the word scores for words within the candidate keyword, a keyword score is calculated for each of the candidate keywords. A portion of the candidate keywords are then extracted as keywords based, at least in part, on the candidate keywords having the highest keyword scores.
Rose; Stuart J (Richland, WA), Cowley; Wendy E (Richland, WA), Crow; Vernon L (Richland, WA), Cramer; Nicholas O (Richland, WA)
Battelle Memorial Institute (Richland, WA)
12/ 555,916
September 9, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Contract DE-ACO576RL01830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.