Inspec keywords: mean square error methods; self-organising feature maps; support vector machines; regression analysis; intelligent transportation systems

Other keywords: sparse detector data; traffic patterns; root-mean-squared errors; recurrent congestion; support vector regression model; representative detectors; real-time freeway travel time estimation; self-organised mapping algorithm

Subjects: Knowledge engineering techniques; Interpolation and function approximation (numerical analysis); Neural computing techniques; Traffic engineering computing; Other topics in statistics