The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2020
Filed:
Aug. 15, 2017
Apple Inc., Cupertino, CA (US);
Blaise Thomson, Cambridge, GB;
David J. Vandyke, Cambridge, GB;
Gennaro Frazzingaro, San Francisco, CA (US);
Silvia Frias Delgado, Cambridge, GB;
Thomas Benedict Gunter, Oxford, GB;
Thomas David Voice, Cambridge, GB;
Thorvaldur Pall Helgason, Cambridge, GB;
Stephen J. Young, Cambridge, GB;
Diarmuid Ó Śeaghdha, Cambridge, GB;
Dain Kaplan, Cambridge, GB;
Apple Inc., Cupertino, CA (US);
Abstract
Systems and processes for optimizing dialogue policy decisions for digital assistants using implicit feedback are provided. In an example process, a user utterance is received. Based on a text representation of the user utterance, one or more user intents corresponding to the user utterance are determined. A policy action is selected from a plurality of candidate policy actions based on a belief state for the one or more user intents and a policy model. The policy action is performed, including outputting results of the policy action for presentation. A success score for the policy action is determined based on whether one or more predetermined types of implicit user feedback are detected after performing the policy action. A set of parameter values of the policy model is modified using the determined success score.