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A Self-supervised Riemannian GNN with Time Varying Curvature for Temporal Graph Learning. (arXiv:2208.14073v1 [cs.LG])
Aug. 31, 2022, 1:10 a.m. | Li Sun, Junda Ye, Hao Peng, Philip S. Yu
cs.LG updates on arXiv.org arxiv.org
Representation learning on temporal graphs has drawn considerable research
attention owing to its fundamental importance in a wide spectrum of real-world
applications. Though a number of studies succeed in obtaining time-dependent
representations, it still faces significant challenges. On the one hand, most
of the existing methods restrict the embedding space with a certain curvature.
However, the underlying geometry in fact shifts among the positive curvature
hyperspherical, zero curvature Euclidean and negative curvature hyperbolic
spaces in the evolvement over time. On …
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