Papers › Resampling Methods for Detecting Anisotropic Correlation Structure
Resampling Methods for Detecting Anisotropic Correlation Structure
Assaf Rabinowicz, Saharon Rosset
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This paper proposes parametric and non-parametric hypothesis testing algorithms for detecting anisotropy -- rotational variance of the covariance function in random fields. Both algorithms are based on resampling mechanisms, which enable avoiding relying on asymptotic assumptions, as is common in previous algorithms. The algorithms' performance is illustrated numerically in simulation experiments and on real datasets representing a variety of potential challenges.
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