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arXiv 2201.11424math.STstat.MEstat.TH
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随机块模型的估计与推断

Estimation and inference for stochastic blockmodels

Koen Jochmans

摘要:

本文研究加权随机区组模型的非参数估计。我们首先表明,该模型意味着一组多线性限制的联合分布的边权重的某些子图涉及(在其最简单的形式)三胞胎和四胞胎的节点。从这个方程组系统的模型的未知组件可以恢复非参数,通常的标签模糊。我们引入一个简单的和计算吸引力的方式来做到这一点。然后,估算者遵循类比原则。提供了极限理论。我们发现,成分分布和他们的泛函,以及他们的密度函数(边缘权重是连续的情况下)都是估计的参数率。数值实验报告。

英文摘要:

This paper is concerned with nonparametric estimation of the weighted stochastic block model. We first show that the model implies a set of multilinear restrictions on the joint distribution of edge weights of certain subgraphs involving (in its simplest form) triplets and quadruples of nodes. From this system of equations the unknown components of the model can be recovered nonparametrically, up to the usual labeling ambiguity. We introduce a simple and computationally-attractive manner to do this. Estimators then follow from the analogy principle. Limit theory is provided. We find that component distributions and their functionals, as well as their density functions (for the case where edge weights are continuous) are all estimable at the parametric rate. Numerical experiments are reported on.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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