I'm not sure if this will solve your problem, but you are using a very old version of Ranklib. The most recent version is 2.9. https://sourceforge.net/projects/lemur/files/lemur/RankLib-2.9/
-----Original Message----- From: kusha.pande [mailto:kusha.pa...@gmail.com] Sent: Thursday, February 15, 2018 8:12 AM To: solr-user@lucene.apache.org Subject: solr ltr jar is not able to recognize MultipleAdditiveTreesModel Hi I am trying to upload a training model generated from ranklib jar using lamdamart mart. The model is like {"class":"org.apache.solr.ltr.model.MultipleAdditiveTreesModel", "name":"lambdamartmodel", "params" : { "trees" :[ { "id": "1", "weight": "0.1", "split": { "feature": "8", "threshold": "7.111333", "split": [ { "pos": "left", "feature": "8", "threshold": "5.223557", "split": [ { "pos": "left", "feature": "8", "threshold": "3.2083516", "split": [ { "pos": "left", "feature": "1", "threshold": "100.0", "split": [ { "pos": "left", "feature": "8", "threshold": "2.2626402", "split": [ { "pos": "left", "feature": "8", "threshold": "2.2594802", "split": [ { "pos": "left", "output": "-1.6371088" }, { "pos": "right", "output": "-2.0" } ] }, { "pos": "right", "feature": "8", "threshold": "2.4438097", "split": [ { "pos": "left", "feature": "2", "threshold": "0.05", "split": [ { "pos": "left", "output": "2.0" }, ...... getting an exception as : Exception: Status: 400 Bad Request Response: { "responseHeader":{ "status":400, "QTime":43}, "error":{ "metadata":[ "error-class","org.apache.solr.common.SolrException", "root-error-class","java.lang.RuntimeException"], "msg":"org.apache.solr.ltr.model.ModelException: Model type does not exist org.apache.solr.ltr.model.MultipleAdditiveTreesModel", "code":400}} . I have used RankLib-2.1-patched.jar to generate the model and converted the generated xml to json. -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
