RT Generic
T1 Modelling physical activity profiles in COPD patients: a new approach to variable-domain functional regression models
A1 Hernandez Amaro, Pavel
A1 Durbán Reguera, María Luz
A1 Aguilera Morillo, María del Carmen
A1 Esteban Gonzalez, Cristobal
A1 Arostegui, Inma
A2 Universidad Carlos III de Madrid. Departamento de Estadística, 
AB Motivated by the increasingly common technology for collecting data, like cellphones, smartwatches, etc, functional data analysis has been intensively studied in recent decades, and along with it, functional regression models. However, the majority of functional data methods in general and functional regression models, in particular, are based on the fact that the observed datapresent the same domain. When the data have variable domain it needs to be aligned or registered in order to be fitted with the usual modeling techniques adding computational burden. To avoid this, a model that contemplates the variable domain features of the data is needed, but this type of models are scarce and its estimation method presents some limitations. In this article, we propose a new scalar-on-function regression model for variable domain functional data that eludes the need for alignment and a new estimation methodology that we extend to other variable domain regression models.
SN 2387-0303
YR 2023
FD 2023-05-05
LK https://hdl.handle.net/10016/37255
UL https://hdl.handle.net/10016/37255
LA eng
DS e-Archivo
RD 1 sept. 2024