meters I see improvement I check for overfitting features I remove them and see if all the filters are useful so in some users may not be used for into these bands by just remove it one of the most powerful features that I have found so far and almost always work is this veto this kind of features you provide some feature wide and you compute some statistics using another feature and then you just remove that beam from the original row so you can apply you apply this on categorical filter features you can also do it on