Search Results for author: Auroop R. Ganguly

Found 12 papers, 3 papers with code

A Tri-Level Optimization Model for Interdependent Infrastructure Network Resilience Against Compound Hazard Events

no code implementations16 Oct 2023 Matthew R. Oster, Ilya Amburg, Samrat Chatterjee, Daniel A. Eisenberg, Dennis G. Thomas, Feng Pan, Auroop R. Ganguly

Here, our notional operator may choose proxy actions to operate an interdependent system comprised of fuel terminals and gas stations (functioning as supplies) and a transportation network with traffic flow (functioning as demand) to minimize unmet demand at gas stations.

CDA: Contrastive-adversarial Domain Adaptation

no code implementations10 Jan 2023 Nishant Yadav, Mahbubul Alam, Ahmed Farahat, Dipanjan Ghosh, Chetan Gupta, Auroop R. Ganguly

Recent advances in domain adaptation reveal that adversarial learning on deep neural networks can learn domain invariant features to reduce the shift between source and target domains.

Contrastive Learning Domain Adaptation

Robust Causality and False Attribution in Data-Driven Earth Science Discoveries

no code implementations26 Sep 2022 Elizabeth Eldhose, Tejasvi Chauhan, Vikram Chandel, Subimal Ghosh, Auroop R. Ganguly

Simulated data, and observations in climate and ecohydrology, suggest the robustness and consistency of this approach.

counterfactual

Climate-mediated shifts in temperature fluctuations promote extinction risk

1 code implementation23 Feb 2022 Kate Duffy, Tarik C. Gouhier, Auroop R. Ganguly

When integrated into empirically-parameterized mathematical models that simulate the dynamical and cumulative effects of thermal stress on the performance of 38 global ectotherm species, the projected spatiotemporal changes in temperature fluctuations are expected to give rise to complex regional changes in population abundance and stability over the course of the 21st century.

Explainable deep learning for insights in El Niño and river flows

no code implementations7 Jan 2022 Yumin Liu, Kate Duffy, Jennifer G. Dy, Auroop R. Ganguly

The El Ni\~no Southern Oscillation (ENSO) is a semi-periodic fluctuation in sea surface temperature (SST) over the tropical central and eastern Pacific Ocean that influences interannual variability in regional hydrology across the world through long-range dependence or teleconnections.

Bayesian Deep Learning Hyperparameter Search for Robust Function Mapping to Polynomials with Noise

no code implementations23 Jun 2021 Nidhin Harilal, Udit Bhatia, Auroop R. Ganguly

However, our understanding of how to design Bayesian Deep Learning (BDL) hyperparameters, specifically, the depth, width and ensemble size, for robust function mapping with uncertainty quantification, is still emerging.

Neural Architecture Search Uncertainty Quantification

Machine Learning for Robust Identification of Complex Nonlinear Dynamical Systems: Applications to Earth Systems Modeling

no code implementations12 Aug 2020 Nishant Yadav, Sai Ravela, Auroop R. Ganguly

In climate and earth systems models, while governing equations follow from first principles and understanding of key processes has steadily improved, the largest uncertainties are often caused by parameterizations such as cloud physics, which in turn have witnessed limited improvements over the last several decades.

BIG-bench Machine Learning Gaussian Processes +1

A framework for deep learning emulation of numerical models with a case study in satellite remote sensing

1 code implementation29 Oct 2019 Kate Duffy, Thomas Vandal, Weile Wang, Ramakrishna Nemani, Auroop R. Ganguly

A difficult test for deep learning-based emulation, which refers to function approximation of numerical models, is to understand whether they can be comparable to traditional forms of surrogate models in terms of computational efficiency while simultaneously reproducing model results in a credible manner.

Cloud Detection Computational Efficiency

Quantifying Uncertainty in Discrete-Continuous and Skewed Data with Bayesian Deep Learning

1 code implementation13 Feb 2018 Thomas Vandal, Evan Kodra, Jennifer Dy, Sangram Ganguly, Ramakrishna Nemani, Auroop R. Ganguly

Furthermore, we find that the lognormal distribution, which can handle skewed distributions, produces quality uncertainty estimates at the extremes.

Management Super-Resolution +1

Intercomparison of Machine Learning Methods for Statistical Downscaling: The Case of Daily and Extreme Precipitation

no code implementations13 Feb 2017 Thomas Vandal, Evan Kodra, Auroop R. Ganguly

Statistical downscaling of global climate models (GCMs) allows researchers to study local climate change effects decades into the future.

BIG-bench Machine Learning

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