{"action":"created","issue":{"url":"https://api.github.com/repos/facebook/C3D/issues/57","labels_url":"https://api.github.com/repos/facebook/C3D/issues/57/labels{/name}","comments_url":"https://api.github.com/repos/facebook/C3D/issues/57/comments","events_url":"https://api.github.com/repos/facebook/C3D/issues/57/events","html_url":"https://github.com/facebook/C3D/issues/57","id":124391913,"number":57,"title":"Accuracy difference","user":{"login":"visionresearcher","id":16493019,"avatar_url":"https://avatars.githubusercontent.com/u/16493019?v=3","gravatar_id":"","url":"https://api.github.com/users/visionresearcher","html_url":"https://github.com/visionresearcher","followers_url":"https://api.github.com/users/visionresearcher/followers","following_url":"https://api.github.com/users/visionresearcher/following{/other_user}","gists_url":"https://api.github.com/users/visionresearcher/gists{/gist_id}","starred_url":"https://api.github.com/users/visionresearcher/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/visionresearcher/subscriptions","organizations_url":"https://api.github.com/users/visionresearcher/orgs","repos_url":"https://api.github.com/users/visionresearcher/repos","events_url":"https://api.github.com/users/visionresearcher/events{/privacy}","received_events_url":"https://api.github.com/users/visionresearcher/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":6,"created_at":"2015-12-30T19:45:58Z","updated_at":"2016-01-18T01:09:34Z","closed_at":"2016-01-18T01:09:34Z","body":"Hi,\r\nI trained my network on a dataset and the testing accuracy while training was 100%. However, when I used the same trained network to extract fc6,fc7 and prob on the same testing dataset, the accuracy computed from .prob is around 50%, which is weird.\r\n\r\nAny help in this regard is appreciated.\r\n"},"comment":{"url":"https://api.github.com/repos/facebook/C3D/issues/comments/172403086","html_url":"https://github.com/facebook/C3D/issues/57#issuecomment-172403086","issue_url":"https://api.github.com/repos/facebook/C3D/issues/57","id":172403086,"user":{"login":"dutran","id":2883574,"avatar_url":"https://avatars.githubusercontent.com/u/2883574?v=3","gravatar_id":"","url":"https://api.github.com/users/dutran","html_url":"https://github.com/dutran","followers_url":"https://api.github.com/users/dutran/followers","following_url":"https://api.github.com/users/dutran/following{/other_user}","gists_url":"https://api.github.com/users/dutran/gists{/gist_id}","starred_url":"https://api.github.com/users/dutran/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dutran/subscriptions","organizations_url":"https://api.github.com/users/dutran/orgs","repos_url":"https://api.github.com/users/dutran/repos","events_url":"https://api.github.com/users/dutran/events{/privacy}","received_events_url":"https://api.github.com/users/dutran/received_events","type":"User","site_admin":false},"created_at":"2016-01-18T01:09:34Z","updated_at":"2016-01-18T01:09:34Z","body":"I think @chuckcho is right. When you extract features, you need to turn shuffle = false, so that you keep the correspondences between inputs and features. As you shuffled, the your features are extracted in a random order. Thus you get 50% accuracy (random chance as you have 2 classes)\r\n"}}