Title: Constructing priors for varying coefficient models
Authors: Maria Franco Villoria - University of Torino (Italy) [presenting]
Massimo Ventrucci - University of Bologna (Italy)
Haavard Rue - KAUST (Saudi Arabia)
Abstract: Varying coefficient models arise naturally as a flexible extension of a simpler model where the effect of the covariate is constant. We present varying coefficient models in a unified way using the recently proposed framework of penalized complexity (PC) priors to build priors that allow proper shrinkage to the simpler model, avoiding overfitting. We illustrate their application in a case study on air pollution and hospital admissions in Turin (Italy).