Search Results for author: Shivam Barwey

Found 5 papers, 0 papers with code

Interpretable Fine-Tuning for Graph Neural Network Surrogate Models

no code implementations13 Nov 2023 Shivam Barwey, Romit Maulik

Data-driven surrogate modeling has surged in capability in recent years with the emergence of graph neural networks (GNNs), which can operate directly on mesh-based representations of data.

Graph Sampling

Importance of equivariant and invariant symmetries for fluid flow modeling

no code implementations3 May 2023 Varun Shankar, Shivam Barwey, Zico Kolter, Romit Maulik, Venkatasubramanian Viswanathan

Graph neural networks (GNNs) have shown promise in learning unstructured mesh-based simulations of physical systems, including fluid dynamics.

Jacobian-Scaled K-means Clustering for Physics-Informed Segmentation of Reacting Flows

no code implementations2 May 2023 Shivam Barwey, Venkat Raman

The goal of this work is to show how the JSK-means algorithm -- without modifying the input dataset -- produces clusters that capture regions of dynamical similarity, in that the clusters are redistributed towards high-sensitivity regions in phase space and are described by similarity in the source terms of samples instead of the samples themselves.

Clustering

Multiscale Graph Neural Network Autoencoders for Interpretable Scientific Machine Learning

no code implementations13 Feb 2023 Shivam Barwey, Varun Shankar, Venkatasubramanian Viswanathan, Romit Maulik

The goal of this work is to address two limitations in autoencoder-based models: latent space interpretability and compatibility with unstructured meshes.

Using machine learning to construct velocity fields from OH-PLIF images

no code implementations22 Sep 2019 Shivam Barwey, Malik Hassanaly, Venkat Raman, Adam Steinberg

Ultimately, this work shows the powerful ability of the CNN to decode the three-dimensional PIV fields from input OH-PLIF images, providing a potential groundwork for a very useful tool for experimental configurations in which accessibility of forms of simultaneous measurements are limited.

BIG-bench Machine Learning MORPH

Cannot find the paper you are looking for? You can Submit a new open access paper.