Papers › Graph networks as learnable physics engines for inference and control

Graph networks as learnable physics engines for inference and control

4 Jun 2018ICML 2018 7arXiv:1806.01242archive 2025-07-28

Alvaro Sanchez-Gonzalez, Nicolas Heess, Jost Tobias Springenberg, Josh Merel, Martin Riedmiller, Raia Hadsell, Peter Battaglia

Understanding and interacting with everyday physical scenes requires rich knowledge about the structure of the world, represented either implicitly in a value or policy function, or explicitly in a transition model. Here we introduce a new class of learnable models--based on graph networks--which implement an inductive bias for object- and relation-centric representations of complex, dynamical systems. Our results show that as a forward model, our approach supports accurate predictions from real and simulated data, and surprisingly strong and efficient generalization, across eight distinct physical systems which we varied parametrically and structurally. We also found that our inference model can perform system identification. Our models are also differentiable, and support online planning via gradient-based trajectory optimization, as well as offline policy optimization. Our framework offers new opportunities for harnessing and exploiting rich knowledge about the world, and takes a key step toward building machines with more human-like representations of the world.

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Tasks

Inductive BiasWeather Forecasting

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Weather Forecasting SD GN-skip MSE (t+1) 0.6543 ± 0.1195 #9 of 10 Archive leaderboard report
Weather Forecasting SD GN-skip MSE (t+6) 0.9872 ± 0.2425 #9 of 10 Archive leaderboard report
Weather Forecasting SD GN-only MSE (t+1) 0.7007 ± 0.0848 #10 of 10 Archive leaderboard report
Weather Forecasting SD GN-only MSE (t+6) 1.0422 ± 0.0673 #10 of 10 Archive leaderboard report

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