Truncation causes different positional encoding families to have unequal expressive power in GNNs, with truncated spectral PEs limited to 1-WL strength, and mixing families improves results on real datasets.
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Understanding Truncated Positional Encodings for Graph Neural Networks
Truncation causes different positional encoding families to have unequal expressive power in GNNs, with truncated spectral PEs limited to 1-WL strength, and mixing families improves results on real datasets.