4 papers
Dense alternating sign matrices and imprecise copulas
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 identify dense alternati…
Characterization of multi-way binary tables with uniform margins and fixed correlations
Roberto Fontana, Elisa Perrone, Fabio Rapallo
In many applications involving binary variables, only pairwise dependence measures, such as correlations, are available. However, for multi-way tables involving more than two varia…
Zero patterns in multi-way binary contingency tables with uniform margins
Roberto Fontana, Elisa Perrone, Fabio Rapallo
We study the problem of transforming a multi-way contingency table into an equivalent table with uniform margins and same dependence structure. This is an old question which relate…
Multi-way contingency tables with uniform margins
Elisa Perrone, Roberto Fontana, Fabio Rapallo
We study the problem of transforming a multi-way contingency table into an equivalent table with uniform margins and same dependence structure. Such a problem relates to recent dev…