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math.ST2020
Separable Expansions for Covariance Estimation
Tomas Masak, Soham Sarkar, Victor M. Panaretos
The non-parametric estimation of covariance lies at the heart of functional data analysis, whether for curve or surface-valued data. The case of a two-dimensional domain poses both…
stat.ME2020
On a Generalization of the Average Distance Classifier
Sarbojit Roy, Soham Sarkar, Subhajit Dutta
In high dimension, low sample size (HDLSS)settings, the simple average distance classifier based on the Euclidean distance performs poorly if differences between the locations get…