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Graph Neural Networks and Arithmetic Circuits
Feb. 29, 2024, 5:41 a.m. | Timon Barlag, Vivian Holzapfel, Laura Strieker, Jonni Virtema, Heribert Vollmer
cs.LG updates on arXiv.org arxiv.org
Abstract: We characterize the computational power of neural networks that follow the graph neural network (GNN) architecture, not restricted to aggregate-combine GNNs or other particular types. We establish an exact correspondence between the expressivity of GNNs using diverse activation functions and arithmetic circuits over real numbers. In our results the activation function of the network becomes a gate type in the circuit. Our result holds for families of constant depth circuits and networks, both uniformly and …
abstract architecture arxiv computational cs.ai cs.cc cs.lg diverse functions gnn gnns graph graph neural network graph neural networks network networks neural network neural networks numbers power results type types
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