相关随机图的匹配恢复阈值

Matching recovery threshold for correlated random graphs

Annals of Statistics · 2023
被引 19
ABS 4★

中文导读

研究了从同一个Erdős–Rényi随机图中独立子采样得到的两个相关图,在无标签条件下恢复潜在顶点匹配的信息论阈值,适用于图匹配和网络对齐领域。

Abstract

For two correlated graphs which are independently sub-sampled from a common Erdős–Rényi graph G(n,p), we wish to recover their latent vertex matching from the observation of these two graphs without labels. When p=n−α+o(1) for α∈(0,1], we establish a sharp information-theoretic threshold for whether it is possible to correctly match a positive fraction of vertices. Our result sharpens a constant factor in a recent work by Wu, Xu and Yu.

图论随机图信息论组合数学