diegoceccarelli commented on a change in pull request #242:
URL: https://github.com/apache/solr/pull/242#discussion_r689056500



##########
File path: 
solr/contrib/ltr/src/java/org/apache/solr/ltr/model/MultipleAdditiveTreesModel.java
##########
@@ -292,10 +291,10 @@ private static float scoreNode(float[] featureVector, 
RegressionTreeNode regress
         return 0f;
       }
 
-      if (featureVector[regressionTreeNode.featureIndex] <= 
regressionTreeNode.threshold) {
-        regressionTreeNode = regressionTreeNode.left;
-      } else {
+      if (featureVector[regressionTreeNode.featureIndex] >= 
regressionTreeNode.threshold) {

Review comment:
       I think `==` should be always on the left. But I agree with 
`splitToRight` for backward compatibility. 




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