1. A computer-implemented method comprising: receiving, for each of multiple utterances of a hotword, a data set including at least (i) a speaker verification confidence score associated with the utterance, and (ii) environmental context data associated with the utterance; selecting from among the data sets, a subset of the data sets that are associated with a particular environmental context; selecting a particular data set from among the subset of data sets based on one or more selection criteria; selecting, as a speaker verification threshold for the particular environmental context, the speaker verification confidence score included in the particular data set; and providing, for output to a speaker verification system, the speaker verification threshold for use in performing speaker verification of utterances that are associated with the particular environmental context.
1. A computer-implemented method comprising: receiving, for each of multiple utterances of a hotword, a data set including at least (i) a speaker verification confidence score associated with the utterance, and (ii) environmental context data associated with the utterance; selecting from among the data sets, a subset of the data sets that are associated with a particular environmental context; selecting a particular data set from among the subset of data sets based on one or more selection criteria; selecting, as a speaker verification threshold for the particular environmental context, the speaker verification confidence score included in the particular data set; and providing, for output to a speaker verification system, the speaker verification threshold for use in performing speaker verification of utterances that are associated with the particular environmental context. 12. The method of claim 1 , comprising: selecting from among the data sets, a plurality of subsets of the data sets that are each associated with a respective user; selecting, based on the one or more selection criteria, a plurality of particular data sets, each particular data set being from among a respective subset of the data sets; selecting, as a plurality of speaker verification thresholds, each of the speaker verification threshold being for the respective user, a plurality of speaker verification confidence scores included in each particular data set; and providing, for output to the speaker verification system, the plurality of speaker verification thresholds for use in performing speaker verification of utterances that are associated with the respective user.