cpoerschke commented on a change in pull request #242: URL: https://github.com/apache/solr/pull/242#discussion_r683304620
########## 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: The `==` going left or right is an interesting question! One way to maintain backwards compatibility whilst supporting "go right instead of left" could be via an optional configuration element e.g. ``` - "params" : { "trees" : [ ... ] } + "params" : { "trees" : [ ... ], "splitToRight" : true } ``` And if there is a `scoreNode` change then `explainNode` requires a matching change I think. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@solr.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@solr.apache.org For additional commands, e-mail: issues-h...@solr.apache.org