Hi All,
>
> In LTR for MultipleAdditiveTreeModel what is the purpose of adding
> NODE_SPLIT_SLACK to the threshold?
>
> Reference: org.apache.solr.ltr.model.MultipleAdditiveTreesModel
>
> private static final float NODE_SPLIT_SLACK = 1E-6f;
>
> public void setThreshold(float threshold) {
> this.threshold = threshold + NODE_SPLIT_SLACK;
> }
>
> We have a feature which can return 0.0 or 1.0
>
> And model with this tree:
>
> is_xyz_feature,threshold=0.99999994,left=0.0010180053,right=-0.0057609854
>
> However when Solr actually scores it it is taking it as follows
> is_xyz_feature:1.0<= 1.000001, Go Left
>
> So all the time it goes to left which is incorrect.
>
> Thanks,
> Roopa
>
>
