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Sentiment expression analysis based on keyword hierarchy

  • US 9,477,704 B1
  • Filed: 12/19/2013
  • Issued: 10/25/2016
  • Est. Priority Date: 12/31/2012
  • Status: Active Grant
First Claim
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1. A sentiment-scoring system, comprising:

  • a storage device configured to store a plurality of keywords, keyword groups, and a keyword group hierarchy, wherein each keyword is associated with at least one of the keyword groups, and wherein the keyword hierarchy comprises a hierarchy associated with each keyword group;

    a processor in communication with the storage device, the processor configured to;

    locate a plurality of sentiment expressions;

    identify a plurality of keywords present in the plurality of sentiment expressions;

    determine at least one respective keyword group associated with each identified keyword;

    determine a sentiment score for each sentiment expression with respect to the associated at least one respective keyword group within the keyword hierarchy, wherein each sentiment score is indicative of a level of sentiment about the associated at least one respective keyword group; and

    provide at least one determined sentiment score to a display.

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