Bootstrapping exchangeable random graphs
Bootstrapping exchangeable random graphs
复制标题
自举可交换随机图
DOI:
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发表时间:
2017
影响因子:
1.1
通讯作者:
C. Shalizi
中科院分区:
文献类型:
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作者:
Alden Green;C. Shalizi
We introduce two new bootstraps for exchangeable random graphs. One, the "empirical graphon", is based purely on resampling, while the other, the "histogram stochastic block model", is a model-based "sieve" bootstrap. We show that both of them accurately approximate the sampling distributions of motif densities, i.e., of the normalized counts of the number of times fixed subgraphs appear in the network. These densities characterize the distribution of (infinite) exchangeable networks. Our bootstraps therefore give, for the first time, a valid quantification of uncertainty in inferences about fundamental network statistics, and so of parameters identifiable from them.
DOI:
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发表时间:
2017-09
期刊:
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影响因子:
--
作者:
Jiaming Xu
通讯作者:
Jiaming Xu
影响因子:
4.5
作者:
Shalizi CR;Rinaldo A
通讯作者:
Rinaldo A