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E(3)-Equivariant Mesh Neural Networks

thuan trang · Khang Ngo · Daniel Levy · Thieu Ngoc Vo · Siamak Ravanbakhsh · Truong Son Hy

MR1 & MR2 - Number 136
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Fri 3 May 8 a.m. PDT — 8:30 a.m. PDT


Triangular meshes are widely used to represent three-dimensional objects. As a result, many recent works have addressed the need for geometric deep learning on 3D meshes. However, we observe that the complexities in many of these architectures do not translate to practical performance, and simple deep models for geometric graphs are competitive in practice. Motivated by this observation, we minimally extend the update equations of E(n)-Equivariant Graph Neural Networks (EGNNs) (Satorras et al., 2021) to incorporate mesh face information and further improve it to account for long-range interactions through a hierarchy. The resulting architecture, Equivariant Mesh Neural Network (EMNN), outperforms other, more complicated equivariant methods on mesh tasks, with a fast run-time and no expensive preprocessing. Our implementation is available at \url{}.

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