How to Increase class recall of a yes column in confusion matrix

Elu

HI All,

I have a split validation operator within which i have a MetaCost operator connected to apply model and performance (binomial) operator. Within the MetaCost, i have a logistic regression operator. The confusion matrix shows my yes and no columns but i would like to increase my recall percentage. How do i do that?

IngoRM

Hi,

Did you try different cost values in the parameters of Meta Cost?  Just play around a bit with different values to see the impact on recall and precision until you get closer to the desired result.

Hope this helps,
Ingo

Telcontar120

You can try the Threshold operators (Create and Apply Threshold, see the operators for tutorials regarding their use) and then set your Performance Metric to use Recall as its primary metric of concern.
P.S.  You should use Cross Validation instead of Split Validation :-)

IngoRM

Hi,

Did you try different cost values in the parameters of Meta Cost?  Just play around a bit with different values to see the impact on recall and precision until you get closer to the desired result.

Hope this helps,
Ingo