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Techniques for determining a semantic distance between subjects

  • US 10,621,219 B2
  • Filed: 02/10/2017
  • Issued: 04/14/2020
  • Est. Priority Date: 02/10/2017
  • Status: Active Grant
First Claim
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1. A computer program product configured to determine a semantic distance between subjects, the computer program product comprising:

  • a computer-readable storage device; and

    computer-readable program code embodied on the computer-readable storage device, wherein the computer-readable program code, when executed by a data processing system, causes the data processing system to;

    perform a mathematical operation between each of one or more first topic vectors and each of one or more second topic vectors to generate respective strength values, wherein the first topic vectors are associated with respective first topics of a first subject, the second topic vectors are associated with respective second topics of a second subject, and the respective strength values are indicative of a relative closeness between associated ones of the first and second topics;

    sum relevant ones of the respective strength values to provide an overall strength value between the first subject and the second subject;

    determine a semantic distance between the first subject and the second subject based on the overall strength value; and

    utilize both the first and second subjects in a search for information related to the first subject in response to the semantic distance being within a threshold distance value to improve the operation of the data processing system in answering a question about the first subject.

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