{"action":"created","issue":{"url":"https://api.github.com/repos/fchollet/keras/issues/3739","repository_url":"https://api.github.com/repos/fchollet/keras","labels_url":"https://api.github.com/repos/fchollet/keras/issues/3739/labels{/name}","comments_url":"https://api.github.com/repos/fchollet/keras/issues/3739/comments","events_url":"https://api.github.com/repos/fchollet/keras/issues/3739/events","html_url":"https://github.com/fchollet/keras/issues/3739","id":176165043,"number":3739,"title":"When to use keras.layers.core.Layer?","user":{"login":"kkog","id":20879541,"avatar_url":"https://avatars.githubusercontent.com/u/20879541?v=3","gravatar_id":"","url":"https://api.github.com/users/kkog","html_url":"https://github.com/kkog","followers_url":"https://api.github.com/users/kkog/followers","following_url":"https://api.github.com/users/kkog/following{/other_user}","gists_url":"https://api.github.com/users/kkog/gists{/gist_id}","starred_url":"https://api.github.com/users/kkog/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/kkog/subscriptions","organizations_url":"https://api.github.com/users/kkog/orgs","repos_url":"https://api.github.com/users/kkog/repos","events_url":"https://api.github.com/users/kkog/events{/privacy}","received_events_url":"https://api.github.com/users/kkog/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2016-09-10T07:25:22Z","updated_at":"2016-09-13T07:13:15Z","closed_at":null,"body":"Hi,\r\n\r\nSorry if this is a simple question as I am new to Keras. I have seen a couple of examples where people were using the function Layer in keras.layers.core. But, I could not find a documentation about it. Can someone explain me what is Layer used for? And is it different from keras.layers.core.Dense?"},"comment":{"url":"https://api.github.com/repos/fchollet/keras/issues/comments/246595351","html_url":"https://github.com/fchollet/keras/issues/3739#issuecomment-246595351","issue_url":"https://api.github.com/repos/fchollet/keras/issues/3739","id":246595351,"user":{"login":"kgrm","id":18569293,"avatar_url":"https://avatars.githubusercontent.com/u/18569293?v=3","gravatar_id":"","url":"https://api.github.com/users/kgrm","html_url":"https://github.com/kgrm","followers_url":"https://api.github.com/users/kgrm/followers","following_url":"https://api.github.com/users/kgrm/following{/other_user}","gists_url":"https://api.github.com/users/kgrm/gists{/gist_id}","starred_url":"https://api.github.com/users/kgrm/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/kgrm/subscriptions","organizations_url":"https://api.github.com/users/kgrm/orgs","repos_url":"https://api.github.com/users/kgrm/repos","events_url":"https://api.github.com/users/kgrm/events{/privacy}","received_events_url":"https://api.github.com/users/kgrm/received_events","type":"User","site_admin":false},"created_at":"2016-09-13T07:13:15Z","updated_at":"2016-09-13T07:13:15Z","body":"The [Layer class](https://github.com/fchollet/keras/blob/master/keras/engine/topology.py#L200) is just an abstract interface used to implement layers. It's not a functional NN layer on its own. You don't need to use it unless you're trying to write your own layers, in which case see https://keras.io/layers/writing-your-own-keras-layers/ ."}}
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