{"action":"created","issue":{"url":"https://api.github.com/repos/apache/spark/issues/4677","labels_url":"https://api.github.com/repos/apache/spark/issues/4677/labels{/name}","comments_url":"https://api.github.com/repos/apache/spark/issues/4677/comments","events_url":"https://api.github.com/repos/apache/spark/issues/4677/events","html_url":"https://github.com/apache/spark/pull/4677","id":58131902,"number":4677,"title":"[SPARK-5436] [MLlib] Validate GradientBoostedTrees using runWithValidation","user":{"login":"MechCoder","id":1867024,"avatar_url":"https://avatars.githubusercontent.com/u/1867024?v=3","gravatar_id":"","url":"https://api.github.com/users/MechCoder","html_url":"https://github.com/MechCoder","followers_url":"https://api.github.com/users/MechCoder/followers","following_url":"https://api.github.com/users/MechCoder/following{/other_user}","gists_url":"https://api.github.com/users/MechCoder/gists{/gist_id}","starred_url":"https://api.github.com/users/MechCoder/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/MechCoder/subscriptions","organizations_url":"https://api.github.com/users/MechCoder/orgs","repos_url":"https://api.github.com/users/MechCoder/repos","events_url":"https://api.github.com/users/MechCoder/events{/privacy}","received_events_url":"https://api.github.com/users/MechCoder/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":60,"created_at":"2015-02-18T21:36:15Z","updated_at":"2015-02-24T23:14:44Z","closed_at":"2015-02-24T23:14:34Z","pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/4677","html_url":"https://github.com/apache/spark/pull/4677","diff_url":"https://github.com/apache/spark/pull/4677.diff","patch_url":"https://github.com/apache/spark/pull/4677.patch"},"body":"One can early stop if the decrease in error rate is lesser than a certain tol or if the error increases if the training data is overfit.\r\n\r\nThis introduces a new method runWithValidation which takes in a pair of RDD's , one for the training data and the other for the validation."},"comment":{"url":"https://api.github.com/repos/apache/spark/issues/comments/75869595","html_url":"https://github.com/apache/spark/pull/4677#issuecomment-75869595","issue_url":"https://api.github.com/repos/apache/spark/issues/4677","id":75869595,"user":{"login":"jkbradley","id":5084283,"avatar_url":"https://avatars.githubusercontent.com/u/5084283?v=3","gravatar_id":"","url":"https://api.github.com/users/jkbradley","html_url":"https://github.com/jkbradley","followers_url":"https://api.github.com/users/jkbradley/followers","following_url":"https://api.github.com/users/jkbradley/following{/other_user}","gists_url":"https://api.github.com/users/jkbradley/gists{/gist_id}","starred_url":"https://api.github.com/users/jkbradley/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jkbradley/subscriptions","organizations_url":"https://api.github.com/users/jkbradley/orgs","repos_url":"https://api.github.com/users/jkbradley/repos","events_url":"https://api.github.com/users/jkbradley/events{/privacy}","received_events_url":"https://api.github.com/users/jkbradley/received_events","type":"User","site_admin":false},"created_at":"2015-02-24T23:14:44Z","updated_at":"2015-02-24T23:14:44Z","body":"Done---thanks for the PR!"}}