Seminario Estatística e Investigación Operativa (Graciela Boente)

• “Robust estimators in functional quadratic regression”, organizado polo CITMAga, en formato presencial. Será impartido por Graciela Boente (Universidad de Buenos Aires)

Data: 1 de decembro de 2022
Hora: 13:00 h.
Lugar: Aula-Seminario 4 da Facultade de Ciencias Económicas e Empresariais (Campus Universitario, Vigo)
Resumo:

Functional data analysis aims to provide tools for analysing data collected in the form of functions or curves which appear in fields such as chemometrics, image recognition and spectroscopy, among others. Functional data are intrinsically infinite-dimensional and, as mentioned for instance in Wand et al. (2016), this infinite- dimensional structure is indeed a source of information. For that reason, even when recorded at a finite grid of points, functional observations should be considered as random elements of some functional space rather than multivariate observations. In this manner, some of the theoretical and numerical challenges posed by the high dimensionality may be solved. This framework led to the extension of some classical multivariate analysis concepts, such as linear regression or dimension reduction techniques, to the context of functional data, usually through some regularization tool. Ler máis...