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System and method for computerized semantic indexing and searching

  • US 10,678,820 B2
  • Filed: 04/11/2019
  • Issued: 06/09/2020
  • Est. Priority Date: 04/12/2018
  • Status: Active Grant
First Claim
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1. A semantic indexing system, the semantic indexing system comprising a processing device configured to:

  • provide a corpus comprising a plurality of textual documents, wherein (a) each of the textual documents being composed of one or more sentences;

    (b) each of the sentences being composed of one or more statements; and

    generate an index, the index mapping each of the statements to one or more corresponding frames of a plurality of unique frames;

    wherein;

    (a) each frame of the plurality of unique frames is a pattern consisting of a syntactic description and one or more semantic predicates with a temporal function, and mapping each of the statements to the corresponding frames is performed using a verb of the corresponding statement and using VerbNet, or (b) each frame of the plurality of unique frames represents a situation involving one or more participants, one or more props, and one or more conceptual roles, and mapping each of the statements to the corresponding frames is performed using the verb of the corresponding statement and using FrameNet; and

    wherein each frame of the plurality of unique frames defines a structure that carries a semantic meaning, thereby enabling searching the corpus by a semantic meaning of a search statement.

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