Koen Smets Brigitte Verdonk Elsa Jordaan Evaluation of Performance Measures for SVR Hyperparameter Selection. 637-642 2007 IJCNN http://dx.doi.org/10.1109/IJCNN.2007.4371031 conf/ijcnn/2007 db/conf/ijcnn/ijcnn2007.html#SmetsVJ07