20 citations · 33 across the 7 of their papers we have counts for
4 papers · 1 filter
Where Do Two Populations of Persistence Diagrams Differ? Calibrated Local Inference at a Fixed Budget
Pramita Bagchi, Edward Bae, Atish Mitra +3
Many two-sample tests for populations of persistence diagrams assess global differences without identifying the regions of the birth-death plane that contribute to them. We study s…
Adaptive Frequency Band Analysis for Functional Time Series
Pramita Bagchi, Scott A. Bruce
The frequency-domain properties of nonstationary functional time series often contain valuable information. These properties are characterized through its time-varying power spectr…
A Test for Separability in Covariance Operators of Random Surfaces
Pramita Bagchi, Holger Dette
The assumption of separability is a simplifying and very popular assumption in the analysis of spatio-temporal or hypersurface data structures. It is often made in situations where…
A nonparametric test for stationarity in functional time series
Anne van Delft, Vaidotas Characiejus, Holger Dette
We propose a new measure for stationarity of a functional time series, which is based on an explicit representation of the -distance between the spectral density operator of a…