The main idea is to use EE method to construct a rank of importance for the CSP tuning parameters. With the importance rank, we apply an importance threshold to filter which parameters are relevant to the model. Here we select parameters according to s * i measures. The EE calculations have low computational cost (in time) and this strategy is a non-intrusive way to assess the most influential parameters, thus modifications in the model are not required and the application is straightforward. Below we outline the steps for automatically perform CSP viscosity model calibration: