USER: Unsupervised Structural Entropy-Based Robust Graph Neural Network

نویسندگان

چکیده

Unsupervised/self-supervised graph neural networks (GNN) are susceptible to the inherent randomness in input data, which adversely affects model's performance downstream tasks. In this paper, we propose USER, an unsupervised and robust version of GNN based on structural entropy, alleviate interference perturbations learn appropriate representations nodes without label information. To mitigate effects undesirable perturbations, analyze property intrinsic connectivity define graph. We also identify rank adjacency matrix as a crucial factor revealing that provides same embeddings capture such graph, introduce entropy objective function. Extensive experiments conducted clustering link prediction tasks under random-perturbation meta-attack over three datasets show USER outperforms benchmarks is heavier perturbations.

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ژورنال

عنوان ژورنال: Proceedings of the ... AAAI Conference on Artificial Intelligence

سال: 2023

ISSN: ['2159-5399', '2374-3468']

DOI: https://doi.org/10.1609/aaai.v37i8.26219