no code implementations • 1 Dec 2022 • Sameer K. Deshpande, Soumya Ghosh, Tin D. Nguyen, Tamara Broderick
Test log-likelihood is commonly used to compare different models of the same data or different approximate inference algorithms for fitting the same probabilistic model.
1 code implementation • 8 Nov 2022 • Sameer K. Deshpande
Most implementations of Bayesian additive regression trees (BART) one-hot encode categorical predictors, replacing each one with several binary indicators, one for every level or category.
no code implementations • 11 Jun 2021 • William T. Stephenson, Soumya Ghosh, Tin D. Nguyen, Mikhail Yurochkin, Sameer K. Deshpande, Tamara Broderick
We demonstrate in both synthetic and real-world examples that decisions made with a GP can exhibit non-robustness to kernel choice, even when prior draws are qualitatively interchangeable to a user.
1 code implementation • NeurIPS 2020 • Soumya Ghosh, William T. Stephenson, Tin D. Nguyen, Sameer K. Deshpande, Tamara Broderick
But this existing ACV work is restricted to simpler models by the assumptions that (i) data across CV folds are independent and (ii) an exact initial model fit is available.
1 code implementation • 29 Aug 2017 • Sameer K. Deshpande, Veronika Rockova, Edward I. George
We propose a Bayesian procedure for simultaneous variable and covariance selection using continuous spike-and-slab priors in multivariate linear regression models where q possibly correlated responses are regressed onto p predictors.
Methodology