Arvind Mohan's Avatar

Arvind Mohan

@arvindmohan.bsky.social

Scientific ML for PDEs, Fluid Dynamics & Earth Sciences. Scientist @Los Alamos National Lab. Aerospace Engineer and Mountaineer. Opinions my own, not LANL/ US DOE

158 Followers  |  484 Following  |  10 Posts  |  Joined: 26.11.2024  |  1.6835

Latest posts by arvindmohan.bsky.social on Bluesky

Hell yeah! I wore Metallica yesterday and Opeth the day before. Next AGU should we all have a metalhead social?

13.12.2024 16:50 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Ok total stranger here and this popped in my feed… but as someone rocking a Gojira tee at AGU, I had to represent 🀘

13.12.2024 16:34 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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At @agu.org with great colleagues and interesting work. And snarky badge stickers, courtesy of our very own US Dept of Energy πŸ™ƒ

10.12.2024 22:29 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I’ve mountain biked around the rim of those lakes. To this day, the most surreal place I’ve been in! And the people were so genuinely warm.

08.12.2024 15:57 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Fascinating. Can you say more? All I’ve seen online is either hype or outright dismissal of its capabilities. But I’m cautiously optimistic.

08.12.2024 15:55 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Or more accurately, discussing numerical methods for gradient descent while undergoing (rapid) gradient descent ⛷️

02.12.2024 02:18 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I'm really excited about this paper. Some context for πŸ”­πŸ§ͺπŸ”¬ folks, as the AI summary may be a bit dry...

A common activity in scientific ML is to train AI models on numerical data, generated by simulation. The simulation data is assumed to be ground truth... 🧡

29.11.2024 17:03 β€” πŸ‘ 11    πŸ” 2    πŸ’¬ 1    πŸ“Œ 1
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Cool article by @marccoru.bsky.social et al. exploring the use of spherical harmonics and very shallow SIREN networks to convert longitude and latitude meaningful geospatial embeddings on the sphere (code is also available) arxiv.org/abs/2310.06743

28.11.2024 15:27 β€” πŸ‘ 13    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

The Big Lebowski!!

28.11.2024 05:48 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is a fantastic resource to make research more accessible!

28.11.2024 01:39 β€” πŸ‘ 10    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

To add, even in cases where extrapolation is seen, its likely because of "lucky" interactions in numerical dissipation between the discretization scheme, the grid and the initial condition. Our paper provides formal tools to a priori estimate error and identify extrapolation limits *before* training

26.11.2024 17:21 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Just joined - Where the sky is still blue, but the bird is long gone.

26.11.2024 05:57 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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