Sequential Estimation of Nonparametric Correlation using Hermite Series Estimators.
@article{Stephanou2020SequentialEO, title={Sequential Estimation of Nonparametric Correlation using Hermite Series Estimators.}, author={Michael Stephanou and Melvin M. Varughese}, journal={arXiv: Methodology}, year={2020} }
In this article we describe a new Hermite series based sequential estimator for the Spearman's rank correlation coefficient and provide algorithms applicable in both the stationary and non-stationary settings. To treat the non-stationary setting, we introduce a novel, exponentially weighted estimator for the Spearman's rank correlation, which allows the local nonparametric correlation of a bivariate data stream to be tracked. To the best of our knowledge this is the first algorithm to be… Expand
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