3 papers
math.ST2024
On uniqueness of the set of k-means
Javier Cárcamo, Antonio Cuevas, Luis A. RodrÃguez
We provide necessary and sufficient conditions for the uniqueness of the k-means set of a probability distribution. This uniqueness problem is related to the choice of k: depending…
math.ST2024
A uniform kernel trick for high-dimensional two-sample problems
Javier Cárcamo, Antonio Cuevas, Luis-Alberto RodrÃguez
We use a suitable version of the so-called "kernel trick" to devise two-sample (homogeneity) tests, especially focussed on high-dimensional and functional data. Our proposal entail…
econ.EM2024
Tests for almost stochastic dominance
Amparo BaÃllo, Javier Cárcamo, Carlos Mora-Corral
We introduce a 2-dimensional stochastic dominance (2DSD) index to characterize both strict and almost stochastic dominance. Based on this index, we derive an estimator for the mini…