For passively collected data from heavy-tailed social systems, train-test validation cannot be trusted for most of the system under a low-rank, uniform-prior model.
the full procedure followed to train and validate a predictor
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No Free Delivery Service: Epistemic limits of passive data collection in complex social systems
For passively collected data from heavy-tailed social systems, train-test validation cannot be trusted for most of the system under a low-rank, uniform-prior model.