no code implementations • 13 Jun 2021 • Meet P. Vadera, Soumya Ghosh, Kenney Ng, Benjamin M. Marlin
Bayesian decision theory provides an elegant framework for acting optimally under uncertainty when tractable posterior distributions are available.
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 • 2 Jun 2021 • Soumya Ghosh, Q. Vera Liao, Karthikeyan Natesan Ramamurthy, Jiri Navratil, Prasanna Sattigeri, Kush R. Varshney, Yunfeng Zhang
In this paper, we describe an open source Python toolkit named Uncertainty Quantification 360 (UQ360) for the uncertainty quantification of AI models.
1 code implementation • 1 Jun 2021 • Jiri Navratil, Benjamin Elder, Matthew Arnold, Soumya Ghosh, Prasanna Sattigeri
Accurate quantification of model uncertainty has long been recognized as a fundamental requirement for trusted AI.
no code implementations • 18 Dec 2020 • Siddharth Biswal, Soumya Ghosh, Jon Duke, Bradley Malin, Walter Stewart, Jimeng Sun
De-identified EHRs do not adequately address the needs of health systems, as de-identified data are susceptible to re-identification and its volume is also limited.
1 code implementation • ICML 2020 • Sebastian Claici, Mikhail Yurochkin, Soumya Ghosh, Justin Solomon
Our algorithm relies on a mean field assumption for both the fused model and the individual dataset posteriors and proceeds using a simple assign-and-average approach.
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 • NeurIPS 2019 • Mikhail Yurochkin, Mayank Agarwal, Soumya Ghosh, Kristjan Greenewald, Trong Nghia Hoang
We consider the problem of aggregating models learned from sequestered, possibly heterogeneous datasets.
no code implementations • 25 Sep 2019 • Joe Davison, Kristen A. Severson, Soumya Ghosh
A significant body of recent work has examined variational autoencoders as a powerful approach for tasks which involve modeling the distribution of complex data such as images and text.
1 code implementation • 24 Jun 2019 • Jiayu Yao, Weiwei Pan, Soumya Ghosh, Finale Doshi-Velez
Bayesian Neural Networks (BNNs) place priors over the parameters in a neural network.
1 code implementation • 28 May 2019 • Mikhail Yurochkin, Mayank Agarwal, Soumya Ghosh, Kristjan Greenewald, Trong Nghia Hoang, Yasaman Khazaeni
In federated learning problems, data is scattered across different servers and exchanging or pooling it is often impractical or prohibited.
no code implementations • ICLR 2019 • Mikhail Yurochkin, Mayank Agarwal, Soumya Ghosh, Kristjan Greenewald, Nghia Hoang, Yasaman Khazaeni
In federated learning problems, data is scattered across different servers and exchanging or pooling it is often impractical or prohibited.
no code implementations • 26 Apr 2019 • Bum Chul Kwon, Vibha Anand, Kristen A Severson, Soumya Ghosh, Zhaonan Sun, Brigitte I Frohnert, Markus Lundgren, Kenney Ng
Clinical researchers use disease progression models to understand patient status and characterize progression patterns from longitudinal health records.
no code implementations • 16 Nov 2018 • Melanie F. Pradier, Weiwei Pan, Jiayu Yao, Soumya Ghosh, Finale Doshi-Velez
As machine learning systems get widely adopted for high-stake decisions, quantifying uncertainty over predictions becomes crucial.
1 code implementation • 14 Nov 2018 • Kristen Severson, Soumya Ghosh, Kenney Ng
Here, we present a probabilistic model for dimensionality reduction to discover signal that is enriched in the target dataset relative to the background dataset.
1 code implementation • ICML 2018 • Soumya Ghosh, Jiayu Yao, Finale Doshi-Velez
Bayesian Neural Networks (BNNs) have recently received increasing attention for their ability to provide well-calibrated posterior uncertainties.
no code implementations • 19 Feb 2018 • Bin Liu, Ying Li, Soumya Ghosh, Zhaonan Sun, Kenney Ng, Jianying Hu
The proposed method is favorable for healthcare applications because in additional to improved prediction performance, relationships among the different risks and risk factors are also identified.
no code implementations • CVPR 2017 • Ajjen Joshi, Soumya Ghosh, Margrit Betke, Stan Sclaroff, Hanspeter Pfister
Leveraging recent work on learning Bayesian neural networks, we build fast, scalable algorithms for inferring the posterior distribution over all network weights in the hierarchy.
1 code implementation • 29 May 2017 • Soumya Ghosh, Finale Doshi-Velez
Bayesian Neural Networks (BNNs) have recently received increasing attention for their ability to provide well-calibrated posterior uncertainties.
2 code implementations • NeurIPS 2012 • Soumya Ghosh, Matthew Loper, Erik B. Sudderth, Michael J. Black
We develop a method for discovering the parts of an articulated object from aligned meshes capturing various three-dimensional (3D) poses.
no code implementations • NeurIPS 2011 • Soumya Ghosh, Andrei B. Ungureanu, Erik B. Sudderth, David M. Blei
The distance dependent Chinese restaurant process (ddCRP) was recently introduced to accommodate random partitions of non-exchangeable data.