CORE: Data Augmentation for Link Prediction via Information Bottleneck
arxiv(2024)
摘要
Link prediction (LP) is a fundamental task in graph representation learning,
with numerous applications in diverse domains. However, the generalizability of
LP models is often compromised due to the presence of noisy or spurious
information in graphs and the inherent incompleteness of graph data. To address
these challenges, we draw inspiration from the Information Bottleneck principle
and propose a novel data augmentation method, COmplete and REduce (CORE) to
learn compact and predictive augmentations for LP models. In particular, CORE
aims to recover missing edges in graphs while simultaneously removing noise
from the graph structures, thereby enhancing the model's robustness and
performance. Extensive experiments on multiple benchmark datasets demonstrate
the applicability and superiority of CORE over state-of-the-art methods,
showcasing its potential as a leading approach for robust LP in graph
representation learning.
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