🥳 RAPIDMINER 9.9 IS OUT!!! 🥳
The updates in 9.9 power advanced use cases and offer productivity enhancements for users who prefer to code.
I used the GridSearchParameterOptimization operator and the ProcessLog operator to find the best C value. The result was C=75 (accuracy: 76%). If I try to setup a process without GridSearchParameterOptimization and with the C value of the LibSVM learner set to 75 (via GUI or ParameterSet) I get an accuracy of only 73%. I can repeat these processes as often as I want, the accurays are always the same. The accuracys of C=75 is always higher if the GridSearchParameterOptimization operator was used. How can this be possible?