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Sam Greydanus: 1/5 Introducing “Lagrangian Neural Networks” Blog: Paper: We show how to parameterize arbitrary Lagrangians and learn them with neural networks. Work done w/ with @MilesCranmer @shoyer @PeterWBattaglia @DavidSpergel @cosmo_shirley

11 replies, 525 likes

Miles Cranmer: 1/10 Very excited to present Lagrangian Neural Networks, a new type of architecture that conserves energy in a learned simulator without requiring canonical coordinates. w/ @samgreydanus, @shoyer, @PeterWBattaglia, @DavidSpergel, @cosmo_shirley:

11 replies, 390 likes

Simone Scardapane: *Lagrangian Neural Networks* 1/4 Minimalist, beautiful paper and experiments. They model a generic Lagrangian with a neural net, then use it to integrate the dynamics of the system itself. Code in #JAX is almost as beautiful as the paper!

2 replies, 84 likes

Ryan Reece: To philosophers concerning the scientific realism debate: this is a way to make manifest that certain models are "true" descriptions of the data independent of us. Neural nets can find them.

3 replies, 27 likes

Miles Cranmer: Excited for ICLR's virtual workshop tomorrow on Neural Networks X Differential Equations. Tune in to see our "poster talk" on Lagrangian Neural Networks! Live-streamed from - our talk is at 6:00 PM Pacific (UTC-7). Q&A session afterward! #ICLR2020

0 replies, 23 likes

Statistics Papers: Lagrangian Neural Networks.

0 replies, 21 likes

Shirley Ho: Proud of our new architecture that conserves energy in a learned simulator. Wonder what kind of #physics and #RealWorld problems we can solve with this new architecture? @MilesCranmer @samgreydanus @shoyer @PeterWBattaglia @DavidSpergel

0 replies, 18 likes

federica bianco 🔭👊: Should we just replace publishing with twitter threads? This thread is clear + gives a great overview of the paper. Ok, I still want to read the paper for details, but THIS is what I mean when I tell my students your figures+captions should tell the whole story! #scicomm

1 replies, 13 likes

Scott H. Hawley: @osprangers @Lorenzo85710163 @hardmaru For physical systems such as @hardmaru’s example, reviews like these would do well to include the excellent work by @samgreydanus et al re. Hamiltonian ( & Lagrangian neural networks; most recently @MilesCranmer et al

1 replies, 5 likes

Roberta: So this week I had this very same problem: my model didn't conserve energy nor mass. My advisor showed me this paper and I'm just "UOW"

2 replies, 1 likes

Miles Cranmer: 2/10 First, papers referenced in main tweet: LNNs - HNNs - Graph Nets - (+ refs therein...) Group-CNNs -

1 replies, 1 likes

matthew miller: Recently did myself, or sort of. Had to derive the Lagrangian for a relativistic Schrödinger-like equation. Required knowledge of higher order Largrangians but ultimately hacked my way through to a solution. Interesting it can be automated, though this algorithm does much more...

0 replies, 1 likes


Found on Mar 11 2020 at

PDF content of a computer science paper: LAGRANGIAN NEURAL NETWORKS