{"action":"opened","issue":{"url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/12249","repository_url":"https://api.github.com/repos/scikit-learn/scikit-learn","labels_url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/12249/labels{/name}","comments_url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/12249/comments","events_url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/12249/events","html_url":"https://github.com/scikit-learn/scikit-learn/issues/12249","id":365956206,"node_id":"MDU6SXNzdWUzNjU5NTYyMDY=","number":12249,"title":"One Class SVM default nu value","user":{"login":"albertcthomas","id":15966638,"node_id":"MDQ6VXNlcjE1OTY2NjM4","avatar_url":"https://avatars3.githubusercontent.com/u/15966638?v=4","gravatar_id":"","url":"https://api.github.com/users/albertcthomas","html_url":"https://github.com/albertcthomas","followers_url":"https://api.github.com/users/albertcthomas/followers","following_url":"https://api.github.com/users/albertcthomas/following{/other_user}","gists_url":"https://api.github.com/users/albertcthomas/gists{/gist_id}","starred_url":"https://api.github.com/users/albertcthomas/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/albertcthomas/subscriptions","organizations_url":"https://api.github.com/users/albertcthomas/orgs","repos_url":"https://api.github.com/users/albertcthomas/repos","events_url":"https://api.github.com/users/albertcthomas/events{/privacy}","received_events_url":"https://api.github.com/users/albertcthomas/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-10-02T15:33:43Z","updated_at":"2018-10-02T15:33:43Z","closed_at":null,"author_association":"CONTRIBUTOR","body":"I think the default value for `nu` in the `OneClassSVM` should be 0.1 and not 0.5. As `nu` roughly corresponds to the fraction of outliers, it makes more sense to set it to a lower value."}}
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