Nonlinear Constrained Principal Component Analysis in the Quality Control Framework. - Michele Gallo; Luigi D'Ambra (GfKl, 2007)

Non-symmetric correspondence analysis with ordinal variables using orthogonal polynomials. - Rosaria Lombardo; Eric J. Beh; Luigi D'Ambra (Comput. Stat. Data Anal., 2007)

Some Interpretative Tools for Non-Symmetrical Correspondence Analysis. - Eric J. Beh; Luigi D'Ambra (J. Classif., 2009)

Decomposition of cumulative chi-squared statistics, with some new tools for their interpretation. - Luigi D'Ambra; Pietro Amenta; Antonello D'Ambra (Stat. Methods Appl., 2018)

Statistical methods for decision making in public sector: from the quality assessment to the citizen satisfaction. - Luigi D'Ambra; Rosella Castellano; Pierpaolo D'Urso; Sandra De Iaco (Ann. Oper. Res., 2024)