Search Results for author: Somayajulu L. N. Dhulipala

Found 6 papers, 2 papers with code

General multi-fidelity surrogate models: Framework and active learning strategies for efficient rare event simulation

no code implementations7 Dec 2022 Promit Chakroborty, Somayajulu L. N. Dhulipala, Yifeng Che, Wen Jiang, Benjamin W. Spencer, Jason D. Hales, Michael D. Shields

The multi-fidelity surrogate is assembled by first applying a Gaussian process correction to each low-fidelity model and assigning a model probability based on the model's local predictive accuracy and cost.

Active Learning Model Selection

Bayesian Inference with Latent Hamiltonian Neural Networks

1 code implementation12 Aug 2022 Somayajulu L. N. Dhulipala, Yifeng Che, Michael D. Shields

Compared to traditional NUTS, L-HNNs in NUTS with online error monitoring required 1--2 orders of magnitude fewer numerical gradients of the target density and improved the effective sample size (ESS) per gradient by an order of magnitude.

Bayesian Inference

Efficient Interdependent Systems Recovery Modeling with DeepONets

no code implementations22 Jun 2022 Somayajulu L. N. Dhulipala, Ryan C. Hruska

Modeling the recovery of interdependent critical infrastructure is a key component of quantifying and optimizing societal resilience to disruptive events.

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