Sfoglia per Autore
Nonlinear Principal Component Analysis as a Tool for the Evaluation of Customer Satisfaction
2010 P.A. Ferrari, G. Manzi
Generating ordinal data
2010 P.A. Ferrari, A. Barbiero
Generation of multivariate discrete data
2010 A. Barbiero, P.A. Ferrari
Handling Missing Data in Presence of Categorical Variables: a New Imputation Procedure
2011 P.A. Ferrari, A. Barbiero, G. Manzi
Complementary Use of Rasch Models and Nonlinear Principal Components Analysis in the Assessment of the Opinion of Europeans About Utilities
2011 P.A. Ferrari, S. Salini
An imputation method for mixed-type data using nonlinear principal component analysis
2011 N. Solaro, A. Barbiero, G. Manzi, P.A. Ferrari
A two-step approach to analyze satisfaction data
2011 P.A. Ferrari, L. Pagani, C.V. Fiorio
An imputation method for categorical variables with application to nonlinear principal component analysis
2011 P.A. Ferrari, P. Annoni, A. Barbiero, G. Manzi
Nonlinear Principal Component Analysis
2012 P.A. Ferrari, A. Barbiero
A sequential distance-based approach for imputing missing data : the forward imputation
2012 N. Solaro, A. Barbiero, G. Manzi, P.A. Ferrari
Multidimensional extensions of IRT models and their application to customer satisfaction evaluation
2012 F. Andreis, P.A. Ferrari
Missing data and parameters estimates in multidimensional item response models
2012 F. Andreis, P.A. Ferrari
Algorithmic imputation techniques for missing data : performance comparisons and development perspectives
2012 N. Solaro, A. Barbiero, G. Manzi, P.A. Ferrari
An extension and a new interpretation of the rank-based concordance index
2012 P.A. Ferrari, E. Raffinetti
What makes for a good missing value imputation? New algorithmic approaches in PCA and random forests-based techniques
2012 N. Solaro, A. Barbiero, G. Manzi, P.A. Ferrari
Simulating Ordinal Data
2012 P.A. Ferrari, A. Barbiero
Simulating correlated ordinal and discrete variables with assigned marginal distributions
2013 A. Barbiero, P.A. Ferrari
A proposal for the multidimensional extension of CUB models
2013 F. Andreis, P.A. Ferrari
Europeans’ opinions on services
2014 P.A. Ferrari, G. Manzi
Generating and Comparing Multivariate Ordinal Variables by Means of Permutation Tests
2014 E. Carrozzo, A. Barbiero, L. Salmaso, P.A. Ferrari
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