{"action":"created","issue":{"url":"https://api.github.com/repos/torch/optim/issues/54","labels_url":"https://api.github.com/repos/torch/optim/issues/54/labels{/name}","comments_url":"https://api.github.com/repos/torch/optim/issues/54/comments","events_url":"https://api.github.com/repos/torch/optim/issues/54/events","html_url":"https://github.com/torch/optim/pull/54","id":61311385,"number":54,"title":"Add ADADELTA algorithm","user":{"login":"urikz","id":1473778,"avatar_url":"https://avatars.githubusercontent.com/u/1473778?v=3","gravatar_id":"","url":"https://api.github.com/users/urikz","html_url":"https://github.com/urikz","followers_url":"https://api.github.com/users/urikz/followers","following_url":"https://api.github.com/users/urikz/following{/other_user}","gists_url":"https://api.github.com/users/urikz/gists{/gist_id}","starred_url":"https://api.github.com/users/urikz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/urikz/subscriptions","organizations_url":"https://api.github.com/users/urikz/orgs","repos_url":"https://api.github.com/users/urikz/repos","events_url":"https://api.github.com/users/urikz/events{/privacy}","received_events_url":"https://api.github.com/users/urikz/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-03-14T00:22:29Z","updated_at":"2015-03-21T11:50:46Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/torch/optim/pulls/54","html_url":"https://github.com/torch/optim/pull/54","diff_url":"https://github.com/torch/optim/pull/54.diff","patch_url":"https://github.com/torch/optim/pull/54.patch"},"body":"Just one more optimization algorithm. I wonder if that will be helpful for others.\r\n\r\nPaper: http://www.matthewzeiler.com/pubs/googleTR2012/googleTR2012.pdf\r\n\r\nTest plan:\r\n\r\n    $ luarocks make optim-1.0.5-0.rockspec\r\n    $ cd test\r\n    $ luarocks make\r\n\r\n    $ th test_adadelta.lua\r\n    Rosenbrock test\r\n    x=\r\n     0.9932\r\n     0.9861\r\n    [torch.DoubleTensor of dimension 2]    \r\n\r\n    fx=\r\n    1\t1\r\n    1001\t0.85674832729526\r\n    2001\t0.65380034382089\r\n    3001\t0.45083429533603\r\n    4001\t0.27774607313817\r\n    5001\t0.14830309667068\r\n    6001\t0.06446454527491\r\n    7001\t0.019846854100354\r\n    8001\t0.0029878163396553\r\n    9001\t0.00021361750977478\r\n    10001\t6.034663542954e-05    \r\n\r\n    $ th test_adagrad.lua\r\n    Rosenbrock test\r\n    x=\r\n     1.0000\r\n     1.0000\r\n    [torch.DoubleTensor of dimension 2]    \r\n\r\n    fx=\r\n    1\t1\r\n    1001\t0.0096629336429242\r\n    2001\t0.0011605963642662\r\n    3001\t0.00017238390470642\r\n    4001\t0.00037591610790092\r\n    5001\t4.4145804955209e-06\r\n    6001\t7.1646069394023e-07\r\n    7001\t1.1654181321944e-07\r\n    8001\t1.8974400763049e-08\r\n    9001\t3.090397609615e-09\r\n    10001\t5.0341388774798e-10    \r\n    \r\n\r\n"},"comment":{"url":"https://api.github.com/repos/torch/optim/issues/comments/84324221","html_url":"https://github.com/torch/optim/pull/54#issuecomment-84324221","issue_url":"https://api.github.com/repos/torch/optim/issues/54","id":84324221,"user":{"login":"soumith","id":1310570,"avatar_url":"https://avatars.githubusercontent.com/u/1310570?v=3","gravatar_id":"","url":"https://api.github.com/users/soumith","html_url":"https://github.com/soumith","followers_url":"https://api.github.com/users/soumith/followers","following_url":"https://api.github.com/users/soumith/following{/other_user}","gists_url":"https://api.github.com/users/soumith/gists{/gist_id}","starred_url":"https://api.github.com/users/soumith/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/soumith/subscriptions","organizations_url":"https://api.github.com/users/soumith/orgs","repos_url":"https://api.github.com/users/soumith/repos","events_url":"https://api.github.com/users/soumith/events{/privacy}","received_events_url":"https://api.github.com/users/soumith/received_events","type":"User","site_admin":false},"created_at":"2015-03-21T11:50:46Z","updated_at":"2015-03-21T11:50:46Z","body":"otherwise, this looks good to me."}}