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Wasserstein-2 bounds in normal approximation under local dependence. (arXiv:1807.05741v1 [math.PR])
来源于:arXiv
We obtain a general bound for the Wasserstein-2 distance in normal
approximation for sums of locally dependent random variables. The proof is
based on an asymptotic expansion for expectations of second-order
differentiable functions of the sum. Applied to subgraph counts in the
Erd\H{o}s-R\'enyi random graph, our result shows that the Wasserstein-1 bound
of Barbour, Karo\'nski and Ruci\'nski (1989) holds for the stronger
Wasserstein-2 distance. 查看全文>>