Independence tests in the presence of measurement errors: An invariance law
Independence tests in the presence of measurement errors: An invariance law
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存在测量误差时的独立性检验:不变律
DOI:
10.1016/j.jmva.2021.104818
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发表时间:
2021-09
影响因子:
1.6
通讯作者:
Zhu Liping
中科院分区:
文献类型:
--
作者:
Fan Jinlin;Zhang Yaowu;Zhu Liping
In many scientific areas the observations are collected with measurement errors. We are interested in measuring and testing independence between random vectors which are subject to measurement errors. We modify the weight functions in the classic distance covariance such that, the modified distance covariance between the random vectors of primary interest is the same as its classic version between the surrogate random vectors, which is referred to as the invariance law in the present context. The presence of measurement errors may substantially weaken the degree of nonlinear dependence. An immediate issue arises: The classic distance correlation between the surrogate vectors cannot reach one even if the two random vectors of primary interest are exactly linearly dependent. To address this issue, we propose to estimate the distance variance using repeated measurements. We study the asymptotic properties of the modified distance correlation thoroughly. In addition, we demonstrate its finite-sample performance through extensive simulations and a real-world application.
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影响因子:
2.4
作者:
Hall, Peter;Miller, Hugh
通讯作者:
Miller, Hugh
DOI:
--
发表时间:
2020-08
期刊:
arXiv: Statistics Theory
影响因子:
--
作者:
Hongjian Shi;M. Drton;Fang Han
通讯作者:
Hongjian Shi;M. Drton;Fang Han
影响因子:
3.7
作者:
D. Hall
通讯作者:
D. Hall
DOI:
10.1002/9780470316481
发表时间:
1980
期刊:
--
影响因子:
--
作者:
Ing Rj Ser
通讯作者:
Ing Rj Ser
DOI:
10.2307/1164709
发表时间:
1988-01
期刊:
--
影响因子:
--
作者:
A. Satorra;W. Fuller
通讯作者:
A. Satorra;W. Fuller