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Fig. 3 | Applied Network Science

Fig. 3

From: Learning compact graph representations via an encoder-decoder network

Fig. 3

The Weisfeiler-Lehman (WL) algorithm can be used to generate structure-based labels for unlabeled graphs. We initially assign the same id/label to each node in the graph. Each iteration of the algorithm is comprised of two steps: node signature construction and hashing. The illustration above shows one iteration. Each node’s signature is prefixed by their current label followed by a sorted list of their neighbor’s labels. The signatures are then hashed to derive new node labels

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