Method and apparatus for responding to a query at a dialog system

摘要

A dialog system is accessed by a remote user and is typically configured to receive a natural language query from the user and return a natural language answer to the user. Dialog systems can be copied without authorization or can become an out-of-date version. A dialog system with a signature, referred to herein as a “signed” dialog system, can indicate the signature without affecting usage by users who are unaware that the dialog system contains the signature. The signed dialog system can respond to input such that only the designer of the dialog system knows the signature is embedded in the dialog system. The response is a way to check the source or other characteristics of the dialog system. A designer of signed dialog systems can prove whether an unauthorized copy of the signed dialog system is used by a third party by using publically-available user interfaces.

主权项

1. A method of responding to a query at a dialog system, the method comprising:
by the dialog system, returning a response to the query by an interaction device, the response identifying the dialog system as a signed dialog system in an event the response includes a representation of an embedded steganographic signature, otherwise the response identifying the dialog system as an unsigned dialog system or a dialog system without the embedded steganographic signature.