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151 results on '"Amenta, Pietro"'

7. Determining the Importance of Hotel Services by Using Transitivity Thresholds

Author

Amenta, Pietro, Lucadamo, Antonio, Marcarelli, Gabriella, Gaul, Wolfgang, Managing Editor, Vichi, Maurizio, Managing Editor, Weihs, Claus, Managing Editor, Baier, Daniel, Editorial Board Member, Critchley, Frank, Editorial Board Member, Decker, Reinhold, Editorial Board Member, Diday, Edwin, Editorial Board Member, Greenacre, Michael, Editorial Board Member, Lauro, Carlo Natale, Editorial Board Member, Meulman, Jacqueline, Editorial Board Member, Monari, Paola, Editorial Board Member, Nishisato, Shizuhiko, Editorial Board Member, Ohsumi, Noboru, Editorial Board Member, Opitz, Otto, Editorial Board Member, Ritter, Gunter, Editorial Board Member, Schader, Martin, Editorial Board Member, Mariani, Paolo, editor, and Zenga, Mariangela, editor

Published
2021
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8. Restricted Cumulative Correspondence Analysis

Author

Amenta, Pietro, D’Ambra, Antonello, D’Ambra, Luigi, Gaul, Wolfgang, Managing Editor, Vichi, Maurizio, Managing Editor, Weihs, Claus, Managing Editor, Baier, Daniel, Editorial Board Member, Critchley, Frank, Editorial Board Member, Decker, Reinhold, Editorial Board Member, Diday, Edwin, Editorial Board Member, Greenacre, Michael, Editorial Board Member, Lauro, Carlo Natale, Editorial Board Member, Meulman, Jacqueline, Editorial Board Member, Monari, Paola, Editorial Board Member, Nishisato, Shizuhiko, Editorial Board Member, Ohsumi, Noboru, Editorial Board Member, Opitz, Otto, Editorial Board Member, Ritter, Gunter, Editorial Board Member, Schader, Martin, Editorial Board Member, Mariani, Paolo, editor, and Zenga, Mariangela, editor

Published
2021
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24. sj-pdf-1-rsh-10.1177_1757913916634136 – Supplemental material for Determinants of patient satisfaction: a systematic review

Author

Batbaatar, Enkhjargal, Dorjdagva, Javkhlanbayar, Luvsannyam, Ariunbat, Savino, Matteo Mario, and Amenta, Pietro

Subjects
111708 Health and Community Services, 111799 Public Health and Health Services not elsewhere classified, FOS: Health sciences
Abstract

Supplemental material, sj-pdf-1-rsh-10.1177_1757913916634136 for Determinants of patient satisfaction: a systematic review by Enkhjargal Batbaatar, Javkhlanbayar Dorjdagva, Ariunbat Luvsannyam, Matteo Mario Savino and Pietro Amenta in Perspectives in Public Health

Published
2023
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28. An extension of correspondence analysis based on the multiple Taguchi's index to evaluate the relationships between three categorical variables graphically: an application to the Italian football championship.

Author

D'Ambra, Antonello and Amenta, Pietro

Subjects
*ORTHOGONAL decompositions, *DATA science, *CONTINGENCY tables, *CONFIDENCE regions (Mathematics), *CONFIDENCE intervals
Abstract

The aim of this paper is to evaluate the relationships between three categorical variables, of which at least one is ordinal, from a graphical point of view and using also inferential tools. Three way Correspondence Analysis is a useful data science visualisation technique to find and display these relationships. This analysis, like the classical two-way analysis, cannot be applied in an efficient way in the presence of ordinal categorical variables because this characteristic is not taken directly into account by the Pearson's chi-square contingency coefficient. Taguchi (Statistical analysis, Maruzen, Tokyo, 1966, Igaku 29:806–813, 1974) introduced a statistic that considers the ordinal nature of a categorical variable using the cumulative frequency of the cells of the contingency table across this variable. He introduced it as a simple alternative to Pearson's statistic for ordered contingency tables. This index is also at the base of several Correspondence Analysis extensions that have been proposed in the literature. We have developed a multiple extension of Taguchi's index. An enhancement of Correspondence Analysis has also been developed based on decomposition of this index. An orthogonal decomposition of this new index has been introduced to test the statistical significance of each aggregated column category. Moreover, a confidence region for each row and aggregated column category of the table has been developed. An application has been developed to highlight the easy applicability and graphical reading of the results of our approach. In this study, we evaluate the relationships between the ranking of the Italian football "Serie A" championship of the last 10 seasons and a set of two factors defined by average percentage of ball possession and number of tags for each team. This new approach may represent a useful guide for researchers who graphically analyse ranking data. [ABSTRACT FROM AUTHOR]

Published
2023
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29. Customer Satisfaction Evaluation: An Approach Based on Simultaneous Diagonalization

Author

Amenta, Pietro, Simonetti, Biagio, Bock, H. -H., editor, Gaul, W., editor, Vichi, M., editor, Arabie, Ph., editor, Baier, D., editor, Critchley, F., editor, Decker, R., editor, Diday, E., editor, Greenacre, M., editor, Lauro, C., editor, Meulman, J., editor, Monari, P., editor, Nishisato, S., editor, Ohsumi, N., editor, Opitz, O., editor, Ritter, G., editor, Schader, M., editor, Weihs, C., editor, Zani, Sergio, editor, Cerioli, Andrea, editor, Riani, Marco, editor, and Vichi, Maurizio, editor

Published
2006
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30. Simple Component Analysis Based on RV Coefficient

Author

Gallo, Michele, Amenta, Pietro, D’Ambra, Lnigi, Bock, H. -H., editor, Gaul, W., editor, Vichi, M., editor, Arabie, Ph., editor, Baier, D., editor, Critchley, F., editor, Decker, R., editor, Diday, E., editor, Greenacre, M., editor, Lauro, C., editor, Meulman, J., editor, Monari, P., editor, Nishisato, S., editor, Ohsumi, N., editor, Opitz, O., editor, Ritter, G., editor, Schader, M., editor, Weihs, C., editor, Zani, Sergio, editor, Cerioli, Andrea, editor, Riani, Marco, editor, and Vichi, Maurizio, editor

Published
2006
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31. Restricted Co-inertia Analysis

Author

Amenta, Pietro, Ciavolino, Enrico, Bock, H. -H., editor, Gaul, W., editor, Vichi, M., editor, Arabie, Ph., editor, Baier, D., editor, Critchley, F., editor, Decker, R., editor, Diday, E., editor, Greenacre, M., editor, Lauro, C., editor, Meulman, J., editor, Monari, P., editor, Nishisato, S., editor, Ohsumi, N., editor, Opitz, O., editor, Ritter, G., editor, Schader, M., editor, Weihs, C., editor, Spiliopoulou, Myra, editor, Kruse, Rudolf, editor, Borgelt, Christian, editor, Nürnberger, Andreas, editor, and Gaul, Wolfgang, editor

Published
2006
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38. Diritto processuale penale canonico e inveramento del principio fondamentale del diritto alla difesa

Author

Amenta , Pietro

Subjects
Law
Abstract

SOMMARIO: 1. Introduzione: dichiarazione d’intenti, obiettivo e metodo - 2. L’assenza di una costituzione nella Chiesa e problematica connessa - 3. L’ordinamento canonico e i suoi limiti nella tutela dei diritti individuali - 4. Un esempio paradigmatico: il processo per l’imposizion Canonical criminal procedural law related to the principle of self-defense: a comparative analysisABSTRACT: The article compiles an analysis of canonical criminal procedural law tracing it in the first place to the lack, in the canonical system, of a constitutional law, which Paul VI had deemed necessary to be adopted when, in the aftermath of Vatican Council II, he decided to promote that Lex Ecclesiae Fundamentalis, later abandoned under the pontificate of John Paul II. The work makes use of a comparative analysis with Italian criminal procedural law and compares the procedural institutes of one and the other legal system to help understand the breadth and consistency of the gaps and shortcomings of canonical procedural law.e di un decreto penale.

Published
2022

50. Confidence regions and other tools for an extension of correspondence analysis based on cumulative frequencies.

Author

D'Ambra, Antonello, Amenta, Pietro, and Beh, Eric J.

Abstract

Over the past 50 years, correspondence analysis (CA) has increasingly been used by data analysts to examine the association structure of categorical variables that are cross-classified to form a contingency table. However, the literature has paid little attention to the case where the variables are ordinal. Indeed, Pearson's chi-squared statistic X 2 can perform badly in studying the association between ordinal categorical variables (Agresti in An introduction to categorical data analysis, Wiley, Hoboken, 1996; Barlow et al. in Statistical inference under order restrictions, Wiley, New York, 1972). Taguchi's (Nair in Technometrics 28(4):283–291, 1986; Nair in J Am Stat Assoc 82:283–291, 1987) and Hirotsu's (Biometrika 73: 165–173, 1986) statistics have been introduced in the literature as simple alternatives to Pearson's index for contingency tables with ordered categorical variables. Taguchi's statistic takes into account the presence of an ordinal categorical variable by considering the cumulative sum of the cell frequencies across the variable. An extension of correspondence analysis using a decomposition of Taguchi's statistic has been introduced to accommodate this feature of the variables. This considers the impact of differences between adjacent ordered categories on the association between row and column categories. Therefore, the main aim of this paper is to introduce a confidence region for each of the ordered categories so that one may determine the statistical significance of a category with respect to the null hypothesis of independence. We highlight that the construction of these circles has not been considered in the literature for this approach to CA. We also introduce a suitable decomposition of Taguchi's statistic to test the statistical significance of each column category. [ABSTRACT FROM AUTHOR]

Published
2021
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