{"action":"created","issue":{"url":"https://api.github.com/repos/Microsoft/CNTK/issues/97","repository_url":"https://api.github.com/repos/Microsoft/CNTK","labels_url":"https://api.github.com/repos/Microsoft/CNTK/issues/97/labels{/name}","comments_url":"https://api.github.com/repos/Microsoft/CNTK/issues/97/comments","events_url":"https://api.github.com/repos/Microsoft/CNTK/issues/97/events","html_url":"https://github.com/Microsoft/CNTK/issues/97","id":132000758,"number":97,"title":"Regression Network with Multiple Outputs and UCI Fast Reader","user":{"login":"amirbegan","id":17112284,"avatar_url":"https://avatars.githubusercontent.com/u/17112284?v=3","gravatar_id":"","url":"https://api.github.com/users/amirbegan","html_url":"https://github.com/amirbegan","followers_url":"https://api.github.com/users/amirbegan/followers","following_url":"https://api.github.com/users/amirbegan/following{/other_user}","gists_url":"https://api.github.com/users/amirbegan/gists{/gist_id}","starred_url":"https://api.github.com/users/amirbegan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/amirbegan/subscriptions","organizations_url":"https://api.github.com/users/amirbegan/orgs","repos_url":"https://api.github.com/users/amirbegan/repos","events_url":"https://api.github.com/users/amirbegan/events{/privacy}","received_events_url":"https://api.github.com/users/amirbegan/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/Microsoft/CNTK/labels/area%20reader","name":"area reader","color":"c7def8"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":4,"created_at":"2016-02-07T19:23:37Z","updated_at":"2016-02-18T21:47:53Z","closed_at":null,"body":"Hi, I am unable to get a regression network with multiple outputs to work using UCIFastReader. Is this possible?\r\n\r\nIf I define a network with 2 output nodes like:\r\n    SimpleNetworkBuilder = [\r\n        layerSizes = 12:2\r\n        ...\r\n\r\nand a UCIFastReader reader labels section as:\r\n    labels = [\r\n            labelType = \"regression\"\r\n            dim = 2 \r\n            start = 12\r\n            labelMappingFile = \"$DataDir$/label-mapping.txt\"\r\n        ]\r\n\r\n...where label-mapping.txt is an empty file.\r\n\r\nWhen I run the train command it ends with the following:\r\nEXCEPTION occurred: NotifyFunctionValuesMBSizeModified: labels InputValue operation had its row dimension 2 changed by the reader to 1.\r\n\r\nIf I change config to a network with one output node and change the reader section to dim = 1, then it works, so I think this somehow has to do with not being able to use the UCIFastReader for regression with multiple outputs, if that is the case - is there a way to do this with some different reader?"},"comment":{"url":"https://api.github.com/repos/Microsoft/CNTK/issues/comments/185936316","html_url":"https://github.com/Microsoft/CNTK/issues/97#issuecomment-185936316","issue_url":"https://api.github.com/repos/Microsoft/CNTK/issues/97","id":185936316,"user":{"login":"amirbegan","id":17112284,"avatar_url":"https://avatars.githubusercontent.com/u/17112284?v=3","gravatar_id":"","url":"https://api.github.com/users/amirbegan","html_url":"https://github.com/amirbegan","followers_url":"https://api.github.com/users/amirbegan/followers","following_url":"https://api.github.com/users/amirbegan/following{/other_user}","gists_url":"https://api.github.com/users/amirbegan/gists{/gist_id}","starred_url":"https://api.github.com/users/amirbegan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/amirbegan/subscriptions","organizations_url":"https://api.github.com/users/amirbegan/orgs","repos_url":"https://api.github.com/users/amirbegan/repos","events_url":"https://api.github.com/users/amirbegan/events{/privacy}","received_events_url":"https://api.github.com/users/amirbegan/received_events","type":"User","site_admin":false},"created_at":"2016-02-18T21:47:53Z","updated_at":"2016-02-18T21:47:53Z","body":"Here is the setup, let me know if you need anything else.\r\n\r\n[auto-mpg-02.zip](https://github.com/Microsoft/CNTK/files/137013/auto-mpg-02.zip)\r\n\r\n\r\n"}}