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Is Distribution Shift a Problem?
I used to believe that this baby is a problem depending on how you define it. But the idea that if you have this static model in production, like a static set of parameters or a function that's being called on some features and these features are changing. At some point, right, you're that this is like the classic view staleness problem in database,. You need to refresh your views to keep up with the underlying data. And one concrete example of this is distribution shift.