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Method for automated sentence planning in a task classification system

  • US 7,574,362 B2
  • Filed: 03/11/2002
  • Issued: 08/11/2009
  • Est. Priority Date: 03/14/2001
  • Status: Expired due to Term
First Claim
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1. A method for sentence planning in a task classification system that interacts with a user, comprising:

  • recognizing symbols in a user'"'"'s single input communication to a task classification system;

    determining whether the user'"'"'s input communication can be understood, wherein if the user'"'"'s communication can be understood, understanding data is generated;

    generating a plurality of communicative goals based on the recognized symbols and understanding data, the generated plurality of communicative goals being related to information needed to be obtained from the user;

    in response to information from the user'"'"'s single input communication;

    generating a plurality of sentence plans based on the plurality of generated communicative goals, each sentence plan in the plurality of sentence plans being a realization comprising elementary speech acts each corresponding to a respective communicative goal and combined into at least one complete sentence that accomplishes the plurality of communicative goals, and wherein each sentence plan of the plurality of sentence plans is a viable and potentially usable prompt in response to the user'"'"'s single input communication;

    independent of the user, ranking the plurality of generated sentence plans; and

    outputting at least one of the ranked sentence plans to the user as a response to the user'"'"'s single input communication such that one dialog turn occurs starting with the user'"'"'s single input communication and ending with the outputted sentence plan.

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