Search Results for author: Vivek Oommen

Found 6 papers, 2 papers with code

RiemannONets: Interpretable Neural Operators for Riemann Problems

1 code implementation16 Jan 2024 Ahmad Peyvan, Vivek Oommen, Ameya D. Jagtap, George Em Karniadakis

Developing the proper representations for simulating high-speed flows with strong shock waves, rarefactions, and contact discontinuities has been a long-standing question in numerical analysis.

Rethinking materials simulations: Blending direct numerical simulations with neural operators

1 code implementation8 Dec 2023 Vivek Oommen, Khemraj Shukla, Saaketh Desai, Remi Dingreville, George Em Karniadakis

This methodology is based on the integration of a community numerical solver with a U-Net neural operator, enhanced by a temporal-conditioning mechanism that enables accurate extrapolation and efficient time-to-solution predictions of the dynamics.

Geophysics

GPT vs Human for Scientific Reviews: A Dual Source Review on Applications of ChatGPT in Science

no code implementations5 Dec 2023 Chenxi Wu, Alan John Varghese, Vivek Oommen, George Em Karniadakis

Herein, we consider 13 GPT-related papers across different scientific domains, reviewed by a human reviewer and SciSpace, a large language model, with the reviews evaluated by three distinct types of evaluators, namely GPT-3. 5, a crowd panel, and GPT-4.

Language Modelling Large Language Model

Real-time Inference and Extrapolation via a Diffusion-inspired Temporal Transformer Operator (DiTTO)

no code implementations18 Jul 2023 Oded Ovadia, Vivek Oommen, Adar Kahana, Ahmad Peyvan, Eli Turkel, George Em Karniadakis

The proposed method, named Diffusion-inspired Temporal Transformer Operator (DiTTO), is inspired by latent diffusion models and their conditioning mechanism, which we use to incorporate the temporal evolution of the PDE, in combination with elements from the transformer architecture to improve its capabilities.

Operator learning Super-Resolution

Deep neural operators can serve as accurate surrogates for shape optimization: A case study for airfoils

no code implementations2 Feb 2023 Khemraj Shukla, Vivek Oommen, Ahmad Peyvan, Michael Penwarden, Luis Bravo, Anindya Ghoshal, Robert M. Kirby, George Em Karniadakis

Deep neural operators, such as DeepONets, have changed the paradigm in high-dimensional nonlinear regression from function regression to (differential) operator regression, paving the way for significant changes in computational engineering applications.

regression

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