Einbeck, Jochen; Tutz, Gerhard - In: Journal of the Royal Statistical Society Series C 55 (2006) 4, pp. 461-475
For speed-flow data, which are intensively discussed in transportation science, common nonparametric regression models of the type "y"="m"("x")+noise turn out to be inadequate since simple functional models cannot capture the essential relationship between the predictor and response. Instead a...