2021

E(n) Equivariant Normalizing Flows

Satorras, Victor Garcia, Hoogeboom, Emiel, Fuchs, Fabian B. et al.

Understand

This paper introduces a generative model equivariant to Euclidean symmetries: E(n) Equivariant Normalizing Flows (E-NFs).

  • To construct E-NFs, we take the discriminative E(n) graph neural networks and integrate them as a differential equation to obtain an invertible equivariant function: a continuous-time normalizing flow.
  • We demonstrate that E-NFs considerably outperform baselines and existing methods from the literature on particle systems such as DW4 and LJ13, and on molecules from QM9 in terms of log-likelihood.
  • To the best of our knowledge, this is the first flow that jointly generates molecule features and positions in 3D.

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