Ankit Nayan

Sorry the image link is not visible above https://ibb.co/j4XSq6

Ranklib is throqing null pointer exception on using MQ2008-list data with LAMBDAMART. Can somebody figure out the error? Command I ran: java -jar RankLib-2.1-patched.jar -train letor/MQ2008-list/Fold1/train.txt -test letor/MQ2008-list/Fold1/test.txt -validate letor/MQ2008-list/Fold1/vali.txt -ranker 6 -metric2t NDCG@10 PFA screenshot 1 | Exception in thread "main" java.lang.NullPointerException at ciir.umass.edu.learning.tree.RegressionTree.fit(Unknown Source) at ciir.umass.edu.learning.tree.LambdaMART.learn(Unknown...