2. The computer-implemented method of claim 1 , wherein determining candidate user profiles that are associated with a shared digital assistant device comprises: determining a relationship between each of a plurality of user profiles and the shared digital assistant device; determining, for each user profile, whether the relationship is indicative of an association between the user profile and the shared digital assistant device; and identifying, for each user profile having a relationship indicative of an association with the shared digital assistant device, the user profile as being one of the candidate user profiles associated with the shared digital assistant device.
2. The computer-implemented method of claim 1 , wherein determining candidate user profiles that are associated with a shared digital assistant device comprises: determining a relationship between each of a plurality of user profiles and the shared digital assistant device; determining, for each user profile, whether the relationship is indicative of an association between the user profile and the shared digital assistant device; and identifying, for each user profile having a relationship indicative of an association with the shared digital assistant device, the user profile as being one of the candidate user profiles associated with the shared digital assistant device. 4. The computer-implemented method of claim 2 , wherein, for each of the plurality of user profiles, the relationship comprises a geographical proximity of at least one user device associated with the user profile to the shared digital assistant device.