Privacy Note that all email data (raw data, preprocessed
data and training data) was encrypted. Engineers could only
inspect aggregated statistics on anonymized sentences that
occurred across many users and did not identify any user.
Also, only frequent words are retained. As a result, verifying
model’s quality and debugging is more complex.
No for ads.
Yes for training models for Smart Reply, from: https://arxiv.org/pdf/1606.04870.pdf
Privacy Note that all email data (raw data, preprocessed data and training data) was encrypted. Engineers could only inspect aggregated statistics on anonymized sentences that occurred across many users and did not identify any user. Also, only frequent words are retained. As a result, verifying model’s quality and debugging is more complex.