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Semantic matching using predicate-argument structure

  • US 20090100053A1
  • Filed: 10/10/2007
  • Published: 04/16/2009
  • Est. Priority Date: 10/10/2007
  • Status: Active Grant
First Claim
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1. A system that processes text intervals, comprising:

  • a preprocessing module configured to;

    extract a first proposition from a first text interval;

    a generation module configured to;

    generate a first proposition tree from the first proposition, wherein the first proposition tree comprises a set of nodes and a set of edges, and wherein each edge includes a semantic relationship between nodes of the first proposition tree; and

    a matching module configured to;

    determine a first similarity value between the first text interval and a second text interval based on a comparison of the first proposition tree and a second proposition tree corresponding to the second text interval, and selectively output the second text interval based on the first similarity value.

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