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DIALOGUE SYSTEM, A DIALOGUE METHOD AND A METHOD OF ADAPTING A DIALOGUE SYSTEM

  • US 20180233143A1
  • Filed: 08/28/2017
  • Published: 08/16/2018
  • Est. Priority Date: 02/13/2017
  • Status: Active Grant
First Claim
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1. A dialogue system comprising:

  • an input for receiving data relating to a speech or text signal originating from a user;

    an output for outputting information specified by an action; and

    a processor configured to;

    update one or more system states based on the input data using one or more state tracker models, wherein the one or more system states comprise probability values associated with each of a plurality of possible values for each of a plurality of categories, wherein a category corresponds to a subject that the speech or text signal may relate to and can take on one or more values from a set of values;

    determine an action function and determine an action function input by inputting information generated using the system state and a set of stored information into a policy model, the set of stored information comprising a plurality of action functions;

    output information specified by the determined action function and the determined action function input at the output.

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