Measuring Association on Topological Spaces Using Kernels and Geometric Graphs
Measuring Association on Topological Spaces Using Kernels and Geometric Graphs
复制标题
使用核和几何图测量拓扑空间上的关联
DOI:
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
B. Sen
中科院分区:
文献类型:
--
作者:
Nabarun Deb;Promit Ghosal;B. Sen
In this paper we propose and study a class of simple, nonparametric, yet interpretable measures of association between two random variables $X$ and $Y$ taking values in general topological spaces. These nonparametric measures -- defined using the theory of reproducing kernel Hilbert spaces -- capture the strength of dependence between $X$ and $Y$ and have the property that they are 0 if and only if the variables are independent and 1 if and only if one variable is a measurable function of the other. Further, these population measures can be consistently estimated using the general framework of graph functionals which include $k$-nearest neighbor graphs and minimum spanning trees. Moreover, a sub-class of these estimators are also shown to adapt to the intrinsic dimensionality of the underlying distribution. Some of these empirical measures can also be computed in near linear time. Under the hypothesis of independence between $X$ and $Y$, these empirical measures (properly normalized) have a standard normal limiting distribution. Thus, these measures can also be readily used to test the hypothesis of mutual independence between $X$ and $Y$. In fact, as far as we are aware, these are the only procedures that possess all the above mentioned desirable properties. Furthermore, when restricting to Euclidean spaces, we can make these sample measures of association finite-sample distribution-free, under the hypothesis of independence, by using multivariate ranks defined via the theory of optimal transport. The recent correlation coefficient proposed in Dette et al. (2013), Chatterjee (2019), and Azadkia and Chatterjee (2019) can be seen as a special case of this general class of measures.
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DOI:
10.13140/rg.2.2.27112.37120
发表时间:
2017-08
期刊:
J. Mach. Learn. Res.
影响因子:
--
作者:
Z. Szabó;Bharath K. Sriperumbudur
通讯作者:
Z. Szabó;Bharath K. Sriperumbudur
DOI:
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发表时间:
2015-05
期刊:
ArXiv
影响因子:
--
作者:
Yakir A. Reshef;David N. Reshef;H. Finucane;Pardis C Sabeti;M. Mitzenmacher
通讯作者:
Yakir A. Reshef;David N. Reshef;H. Finucane;Pardis C Sabeti;M. Mitzenmacher
DOI:
--
发表时间:
2019-06
期刊:
arXiv: Methodology
影响因子:
--
作者:
Divyansh Agarwal;Somabha Mukherjee;B. Bhattacharya;N. Zhang
通讯作者:
Divyansh Agarwal;Somabha Mukherjee;B. Bhattacharya;N. Zhang
DOI:
10.1080/01621459.2021.1923508
发表时间:
2021-06-16
影响因子:
3.7
作者:
Deb,Nabarun;Sen,Bodhisattva
通讯作者:
Sen,Bodhisattva
影响因子:
1
作者:
Linderman,GeorgeC;Mishne,Gal;Jaffe,Ariel;Kluger,Yuval;Steinerberger,Stefan
通讯作者:
Steinerberger,Stefan