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Wednesday, January 13, 2021

AI Can Run Simulation Faithful to Physical Laws

 A kind of 'physics twin'? 

AI Can Run Simulation Faithful to Physical Laws

Kobe University (Japan),  December 18, 2020

Researchers at Japan's Kobe University developed an artificial intelligence (AI) model that can simulate phenomena based on an unknown mechanism or formula, while preserving the laws of physics. The technology aims to enable predictions for phenomena that have been difficult to simulate, like wave motion or fracture mechanics, and speed up the simulations themselves. The researchers created a new digital version of backpropagation using automatic differentiation, which makes it possible to preserve physical laws in the digital world. The researchers also used geometric approaches to apply the technique to the prediction of a wider range of phenomena. ... ' 

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