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math.ST2026
Discrete imprecise copulas and alternating sign matrices
Tomaž Košir, Elisa Perrone, Nik Stopar
In this paper, we study discrete quasi-copulas and discrete imprecise copulas of minimal range, which naturally correspond to alternating sign matrices. We show that this family is…
math.ST2019★ 1 cited
Relation between Blomqvist's beta and other measures of concordance of copulas
Damjana Kokol Bukovšek, Tomaž Košir, Blaž Mojškerc +1
An investigation is presented of how a comprehensive choice of four most important measures of concordance (namely Spearman's rho, Kendall's tau, Spearman's footrule, and Gini's ga…
math.ST2018
Reflected maxmin copulas and modelling quadrant subindependence
Tomaž Košir, Matjaž Omladič
Copula models have become popular in different applications, including modeling shocks, in view of their ability to describe better the dependence concepts in stochastic systems. T…