{"action":"created","issue":{"url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/11259","repository_url":"https://api.github.com/repos/scikit-learn/scikit-learn","labels_url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/11259/labels{/name}","comments_url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/11259/comments","events_url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/11259/events","html_url":"https://github.com/scikit-learn/scikit-learn/issues/11259","id":332405745,"node_id":"MDU6SXNzdWUzMzI0MDU3NDU=","number":11259,"title":"Rework MICEImputer","user":{"login":"glemaitre","id":7454015,"node_id":"MDQ6VXNlcjc0NTQwMTU=","avatar_url":"https://avatars2.githubusercontent.com/u/7454015?v=4","gravatar_id":"","url":"https://api.github.com/users/glemaitre","html_url":"https://github.com/glemaitre","followers_url":"https://api.github.com/users/glemaitre/followers","following_url":"https://api.github.com/users/glemaitre/following{/other_user}","gists_url":"https://api.github.com/users/glemaitre/gists{/gist_id}","starred_url":"https://api.github.com/users/glemaitre/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/glemaitre/subscriptions","organizations_url":"https://api.github.com/users/glemaitre/orgs","repos_url":"https://api.github.com/users/glemaitre/repos","events_url":"https://api.github.com/users/glemaitre/events{/privacy}","received_events_url":"https://api.github.com/users/glemaitre/received_events","type":"User","site_admin":false},"labels":[{"id":273400470,"node_id":"MDU6TGFiZWwyNzM0MDA0NzA=","url":"https://api.github.com/repos/scikit-learn/scikit-learn/labels/Blocker","name":"Blocker","color":"e11d21","default":false},{"id":723599497,"node_id":"MDU6TGFiZWw3MjM1OTk0OTc=","url":"https://api.github.com/repos/scikit-learn/scikit-learn/labels/help%20wanted","name":"help wanted","color":"33aa3f","default":true}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/scikit-learn/scikit-learn/milestones/24","html_url":"https://github.com/scikit-learn/scikit-learn/milestone/24","labels_url":"https://api.github.com/repos/scikit-learn/scikit-learn/milestones/24/labels","id":2577444,"node_id":"MDk6TWlsZXN0b25lMjU3NzQ0NA==","number":24,"title":"0.20","description":"","creator":{"login":"jnothman","id":78827,"node_id":"MDQ6VXNlcjc4ODI3","avatar_url":"https://avatars2.githubusercontent.com/u/78827?v=4","gravatar_id":"","url":"https://api.github.com/users/jnothman","html_url":"https://github.com/jnothman","followers_url":"https://api.github.com/users/jnothman/followers","following_url":"https://api.github.com/users/jnothman/following{/other_user}","gists_url":"https://api.github.com/users/jnothman/gists{/gist_id}","starred_url":"https://api.github.com/users/jnothman/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jnothman/subscriptions","organizations_url":"https://api.github.com/users/jnothman/orgs","repos_url":"https://api.github.com/users/jnothman/repos","events_url":"https://api.github.com/users/jnothman/events{/privacy}","received_events_url":"https://api.github.com/users/jnothman/received_events","type":"User","site_admin":false},"open_issues":43,"closed_issues":31,"state":"open","created_at":"2017-06-12T11:07:06Z","updated_at":"2018-06-14T13:35:14Z","due_on":"2018-01-31T08:00:00Z","closed_at":null},"comments":0,"created_at":"2018-06-14T13:34:49Z","updated_at":"2018-06-14T13:37:02Z","closed_at":null,"author_association":"CONTRIBUTOR","body":"From the discussion in #8478, we have to deal with the following issues in `MICEImputer`:\r\n\r\nWe have the following things to do:\r\n\r\n* Determine the most appropriate way to use individual imputation samples in predictive modelling, clustering, etc, which are Scikit-learn's focus.\r\n      a. is using a single draw acceptable?\r\n      b. is averaging over multiple draws from the final fit appropriate?\r\n      c. is ensembling multiple predictive estimators each trained on a different imputation most appropriate?\r\n* Perhaps determine if, in a predictive modelling context, it is necessary to have the sophistication of MICE in sampling each imputation value rather than just using point predictions.\r\n* Provide an example illustrating the inferential capabilities due to multiple imputation. I don't think there's anything limiting about our current interface, but it deserves an example.\r\n* Rename MICEImputer to de-emphasise multiple imputation because it only performs a single one at a time.\r\n\r\nMinor things:\r\n\r\n* The documentation refer to `Imputer` instead of `SimpleImputer`.\r\n* `imputation_sequences_` should be improved (length of the list mainly).\r\n"},"comment":{"url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/comments/397298594","html_url":"https://github.com/scikit-learn/scikit-learn/issues/11259#issuecomment-397298594","issue_url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/11259","id":397298594,"node_id":"MDEyOklzc3VlQ29tbWVudDM5NzI5ODU5NA==","user":{"login":"sergeyf","id":1874668,"node_id":"MDQ6VXNlcjE4NzQ2Njg=","avatar_url":"https://avatars2.githubusercontent.com/u/1874668?v=4","gravatar_id":"","url":"https://api.github.com/users/sergeyf","html_url":"https://github.com/sergeyf","followers_url":"https://api.github.com/users/sergeyf/followers","following_url":"https://api.github.com/users/sergeyf/following{/other_user}","gists_url":"https://api.github.com/users/sergeyf/gists{/gist_id}","starred_url":"https://api.github.com/users/sergeyf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/sergeyf/subscriptions","organizations_url":"https://api.github.com/users/sergeyf/orgs","repos_url":"https://api.github.com/users/sergeyf/repos","events_url":"https://api.github.com/users/sergeyf/events{/privacy}","received_events_url":"https://api.github.com/users/sergeyf/received_events","type":"User","site_admin":false},"created_at":"2018-06-14T13:37:01Z","updated_at":"2018-06-14T13:37:01Z","author_association":"CONTRIBUTOR","body":"@glemaitre can you clarify what you mean by your point about `imputation_sequences_`?"}}
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