Electrical Length data set
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.
1. Inhabitants - integer [1, 320]
2. Distance - real [60.0, 1673.329956]
3. Length - real [80.0, 7675.0]