Please download the dossier by clicking on the dossier button x
×

System and method using a discriminative learning approach for question answering

  • US 8,543,565 B2
  • Filed: 09/07/2007
  • Issued: 09/24/2013
  • Est. Priority Date: 09/07/2007
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method comprising:

  • training a lexical association model between a question and a first set of possible answers;

    training a semantic association model between the question and a second set of possible answers;

    receiving a user question containing query words;

    parsing the user question syntactically and semantically, to yield a parsed user question;

    expanding the query words based on the lexical association model and the semantic association model, to yield expanded query words;

    weighting the expanded query words according to importance when answering the user question, to yield a weighted expanded query words; and

    returning an answer based on a score calculated based on the following equation;

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×