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Random Walk Graph Neural Networks

NeurIPS 2020 · Graph learning › GNN architectures · approach: Structural GNN variants · 50 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
use RWNN (trainable hidden graphs with random walk kernel) instead of GINRWNN · MUTAGaccuracy (%): 84.7 -> 89.2Helped
use RWNN instead of GINRWNN · ENZYMESaccuracy (%): 59.6 -> 57.6Hurt
use RWNN instead of WL kernelRWNN · NCI1accuracy (%): 84.8 -> 73.9Hurt
shorten walk length P from 3 to 1 (1-step vs 3-step RWNN) (ablation)RWNN · 10 graph classification datasetsaccuracy (%): MUTAG 88.6 -> 89.2; NCI1 73.9 -> 71.4No clear effect
increase walk length P (1 to 3) (ablation)RWNN · REDDIT-MULTI-5Kaccuracy (%): 51.7 -> 53.4Helped

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