Rapid automatic keyword extraction for information retrieval and analysis

Patent · Tue Mar 06 00:00:00 EST 2012

OSTI ID:1039881

Rose, Stuart J ^[1]; Cowley,; E, Wendy ^[1]; Crow, Vernon L ^[1]; Cramer, Nicholas O ^[1]

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1. Richland, WA

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.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• Assignee: Battelle Memorial Institute (Richland, WA)
• Patent Number(s): 8,131,735
• Application Number: 12/555,916
• OSTI ID: 1039881
• Country of Publication: United States
• Language: English

Related Subjects

96 KNOWLEDGE MANAGEMENT AND PRESERVATION