Inference for Dependent Data with Learned Clusters
Inference for Dependent Data with Learned Clusters
复制标题
使用学习集群进行相关数据的推理
DOI:
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复制
发表时间:
2021
影响因子:
8
通讯作者:
L. Villacorta
中科院分区:
文献类型:
--
作者:
Jianfei Cao;Christian Hansen;Damian Kozbur;L. Villacorta
This paper presents and analyzes an approach to cluster-based inference for dependent data. The primary setting considered here is with spatially indexed data in which the dependence structure of observed random variables is characterized by a known, observed dissimilarity measure over spatial indices. Observations are partitioned into clusters with the use of an unsupervised clustering algorithm applied to the dissimilarity measure. Once the partition into clusters is learned, a cluster-based inference procedure is applied to a statistical hypothesis testing procedure. The procedure proposed in the paper allows the number of clusters to depend on the data, which gives researchers a principled method for choosing an appropriate clustering level. The paper gives conditions under which the proposed procedure asymptotically attains correct size. A simulation study shows that the proposed procedure attains near nominal size in finite samples in a variety of statistical testing problems with dependent data.
影响因子:
6.3
作者:
Jenish N;Prucha IR
通讯作者:
Prucha IR
影响因子:
6.1
作者:
Müller, Ulrich K.;Watson, Mark W.
通讯作者:
Watson, Mark W.