Electrical Lenght 1 data set 1: Description. This problem with only two input variables involves a small search space (small complexity). However, it is still an interesting problem since the system is strongly nonlinear and the available data is limited to a low number of examples presenting noise. All of these drawbacks make the modeling surface complicated indeed and, in this case, produce a strong overfitting of the obtained models. 2: Type. Regression 3: Origin. Real world 4: Instances. 495 5: Features. 2 6: Missing values. No 7: Header. @relation ele-1 @attribute Inhabitants integer [1, 320] @attribute Distance real [60.0, 1673.329956] @attribute Length real [80.0, 7675.0] @inputs Inhabitants, Distance @outputs Length