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Oversmoothing in GNNs: why does it happen so fast? (and do popular solutions such as residual connections or normalization really work?)
Published:
Oversmoothing is a well-known problem in message-passing GNNs, but how come it happens when a GNN only has 2-4 layers? In this post, I am going to discuss our ICLR’23 paper “A Non-Asymptotic Analysis of Oversmoothing in Graph Neural Networks”, which provides the first quantitative finite-depth theory of oversmoothing in GNNs and explains why oversmoothing would occur at a shallow depth.
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Launched the personal website
Published in , 2022
Personal Website: I launch this personal website to record my research history.