Goto

Collaborating Authors

 Europe




Communication-efficientDistributedSGDwith Sketching

Neural Information Processing Systems

However,theoretical and empirical evidence both suggest that there is a maximum mini-batch size beyond which the number of iterations required toconvergestops decreasing, andgeneralization error begins toincrease [Maetal.,2017,Lietal., 2014, Golmant et al., 2018, Shallue et al., 2018, Keskar et al., 2016, Hoffer et al., 2017]. In this paper, we aim instead to decrease the communication cost per worker.








Variational Imbalanced Regression: Fair Uncertainty Quantification via Probabilistic Smoothing

Neural Information Processing Systems

Existing regression models tend to fall short in both accuracy and uncertainty estimation when the label distribution is imbalanced. In this paper, we propose a probabilistic deep learning model, dubbed variational imbalanced regression (VIR), which not only performs well in imbalanced regression but naturally produces reasonable uncertainty estimation as a byproduct. Different from typical variational autoencoders assuming I.I.D. representations (a data point's representation is not directly affected by other data points), our VIR borrows data with similar regression labels to compute the latent representation's vari-ational distribution; furthermore, different from deterministic regression models producing point estimates, VIR predicts the entire normal-inverse-gamma distributions and modulates the associated conjugate distributions to impose probabilistic reweighting on the imbalanced data, thereby providing better uncertainty estimation.