246 S. Stijven et al.
Fig. 3 The model dimensionality table shows the modeling potential achieved as a function of the
number of inputs in the constituent models. In this biofuel distillation case, it also illustrates that
there are many paths to comparable models due to potential variable substitutions
3 Modern Business Forecasting
Another new area of industrial applications of GP is business forecasting. The
ultimate objective of business forecasting is to deliver to the key decision-makers
a reliable forecast on specific economic variables, such as product demand, raw
materials prices, labor cost, etc. Of special interest are the forecasting methods