{"action":"created","issue":{"url":"https://api.github.com/repos/pymc-devs/pymc3/issues/2186","repository_url":"https://api.github.com/repos/pymc-devs/pymc3","labels_url":"https://api.github.com/repos/pymc-devs/pymc3/issues/2186/labels{/name}","comments_url":"https://api.github.com/repos/pymc-devs/pymc3/issues/2186/comments","events_url":"https://api.github.com/repos/pymc-devs/pymc3/issues/2186/events","html_url":"https://github.com/pymc-devs/pymc3/pull/2186","id":228771125,"number":2186,"title":"WIP: Low rank updates to the mass matrix","user":{"login":"aseyboldt","id":1882397,"avatar_url":"https://avatars0.githubusercontent.com/u/1882397?v=3","gravatar_id":"","url":"https://api.github.com/users/aseyboldt","html_url":"https://github.com/aseyboldt","followers_url":"https://api.github.com/users/aseyboldt/followers","following_url":"https://api.github.com/users/aseyboldt/following{/other_user}","gists_url":"https://api.github.com/users/aseyboldt/gists{/gist_id}","starred_url":"https://api.github.com/users/aseyboldt/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aseyboldt/subscriptions","organizations_url":"https://api.github.com/users/aseyboldt/orgs","repos_url":"https://api.github.com/users/aseyboldt/repos","events_url":"https://api.github.com/users/aseyboldt/events{/privacy}","received_events_url":"https://api.github.com/users/aseyboldt/received_events","type":"User","site_admin":false},"labels":[{"id":483431340,"url":"https://api.github.com/repos/pymc-devs/pymc3/labels/WIP","name":"WIP","color":"d93f0b","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":4,"created_at":"2017-05-15T16:28:12Z","updated_at":"2017-06-01T08:52:25Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/pymc-devs/pymc3/pulls/2186","html_url":"https://github.com/pymc-devs/pymc3/pull/2186","diff_url":"https://github.com/pymc-devs/pymc3/pull/2186.diff","patch_url":"https://github.com/pymc-devs/pymc3/pull/2186.patch"},"body":"This is just a little weekend experiment for using a better mass matrix in nuts, and not really ready to merge.\r\nBut since I got a 2x speedup in the first model I tried, I thought maybe someone else might be interested.\r\nThe included notebook should explain at least very briefly."},"comment":{"url":"https://api.github.com/repos/pymc-devs/pymc3/issues/comments/305431680","html_url":"https://github.com/pymc-devs/pymc3/pull/2186#issuecomment-305431680","issue_url":"https://api.github.com/repos/pymc-devs/pymc3/issues/2186","id":305431680,"user":{"login":"twiecki","id":674200,"avatar_url":"https://avatars1.githubusercontent.com/u/674200?v=3","gravatar_id":"","url":"https://api.github.com/users/twiecki","html_url":"https://github.com/twiecki","followers_url":"https://api.github.com/users/twiecki/followers","following_url":"https://api.github.com/users/twiecki/following{/other_user}","gists_url":"https://api.github.com/users/twiecki/gists{/gist_id}","starred_url":"https://api.github.com/users/twiecki/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/twiecki/subscriptions","organizations_url":"https://api.github.com/users/twiecki/orgs","repos_url":"https://api.github.com/users/twiecki/repos","events_url":"https://api.github.com/users/twiecki/events{/privacy}","received_events_url":"https://api.github.com/users/twiecki/received_events","type":"User","site_admin":false},"created_at":"2017-06-01T08:52:25Z","updated_at":"2017-06-01T08:52:25Z","body":"@bob-carpenter just curious if you guys experimented with pre-condition of the mass matrix. we're seeing some interesting results here, but it's not very consistent."}}
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