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Importance Weighting Correction of Regularized Least-Squares for Covariate and Target Shifts. (arXiv:2210.09709v2 [stat.ML] UPDATED)
Oct. 27, 2022, 1:13 a.m. | Davit Gogolashvili
stat.ML updates on arXiv.org arxiv.org
In many real world problems, the training data and test data have different
distributions. This situation is commonly referred as a dataset shift. The most
common settings for dataset shift often considered in the literature are {\em
covariate shift } and {\em target shift}. Importance weighting (IW) correction
is a universal method for correcting the bias present in learning scenarios
under dataset shift. The question one may ask is: does IW correction work
equally well for different dataset shift scenarios? …
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