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Nina Otter

3 accepted papers

2021

Weisfeiler and Lehman Go Cellular: CW Networks

NeurIPS 2021poster

Graph Neural Networks (GNNs) are limited in their expressive power, struggle with long-range interactions and lack a principled way to model higher-order structures. These problems can be attributed to the strong coupling between the computational graph and the input graph structure. The recently pr…

2021

Weisfeiler and Lehman Go Topological: Message Passing Simplicial Networks

ICML 2021spotlight

The pairwise interaction paradigm of graph machine learning has predominantly governed the modelling of relational systems. However, graphs alone cannot capture the multi-level interactions present in many complex systems and the expressive power of such schemes was proven to be limited. To overcome…