AI4Science @ Caltech

AI4Learning

Neural Operator – Solving PDEs

Partial Differential Equations (PDE) lay the foundation for modeling a wide variety of scientific phenomena. Traditional solvers tend to be slow when high-fidelity solutions are needed. We introduce neural-operator, a data-driven approach that aims to directly learn the solution operator of PDEs. Unlike neural networks that learn function mapping between finite-dimensional spaces, neural operator extends that to learning the operator between infinite-dimensional spaces. This makes the neural operator independent of resolution and grid of training data and allows for zero-shot generalization to higher resolution evaluations. We find that the neural operator is able to solve the Navier-Stokes equation in the turbulent regime with a 1000x speedup compared to traditional methods.

FURTHER READING

Slides

"AI has cracked a key mathematical puzzle for understanding our world"

"Latest Neural Nets Solve World’s Hardest Equations Faster Than Ever Before"


Principal Investigators


Anima Anandkumar

Anima Anandkumar

Andrew Stuart

Andrew Stuart

Kaushik Bhattacharya

Kaushik Bhattacharya

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