Germán Aneiros is a Full Professor of Statistics at the University of A Coruña, Spain. His main research interest focuses on scalar-on-function regression models, covering linear, nonparametric, partial linear and single index regression. His interests also include the case of high-dimensional covariates. He is an Associate Editor of the journals Computational Statistics and Journal of Multivariate Analysis. Enea G. Bongiorno is an Associate Professor in Statistics at Università del Piemonte Orientale in Novara, Italy. His interests include non- and semi-parametric methods and small ball probability for functional data. He is a fellow of the Bernoulli Society, and IASC (International Association for Statistical Computing) of which he was scientific secretary of the European Regional Section and on the board of directors. He is an Associate Editor of the journals Computational Statistics & Data Analysis and Computational Statistics. Aldo Goia is a Full Professor of Statistics at Università del Piemonte Orientale in Novara, Italy. His research focuses on statistical methods for functional data and in particular on non-parametric and semi-parametric regression models, the small ball probability factorization and the study of complexity. He is an Associate Editor of the journal Computational Statistics. Marie Hušková is a Full Professor of Mathematical Statistics at Charles University in Prague, Czech Republic. She is the author of more than 130 scientific papers, mainly on asymptotic statistics, nonparametric and multivariate statistics and change-point problems. She is an Associate Editor of the journals Metrika, Statistics, and Sequential Analysis, and is a former Associate Editor of the Journal of Statistical Planning and Inference and REVSTAT. She is an elected member of ISI and a fellow of IMS. For several years, she was the Chair of the European Regional Committee of the Bernoulli Society and a member of the Council of ISI.