{"action":"created","comment":{"url":"https://api.github.com/repos/dotnet/machinelearning/pulls/comments/208098214","pull_request_review_id":143839522,"id":208098214,"node_id":"MDI0OlB1bGxSZXF1ZXN0UmV2aWV3Q29tbWVudDIwODA5ODIxNA==","diff_hunk":"@@ -0,0 +1,82 @@\n+# ML.NET 0.4 Release Notes\n+\n+Today we are releasing ML.NET 0.4. During this release we have started\n+exploring new APIs for ML.NET that enable functionality that is missing from\n+the current APIs. We welcome feedback and contributions to the\n+[discussion](https://github.com/dotnet/machinelearning/projects/4). While the\n+focus has been on designing the new APIs, we have also moved several\n+components from the internal codebase to ML.NET.\n+\n+### Installation\n+\n+ML.NET supports Windows, MacOS, and Linux. See [supported OS versions of .NET\n+Core\n+2.0](https://github.com/dotnet/core/blob/master/release-notes/2.0/2.0-supported-os.md)\n+for more details.\n+\n+You can install ML.NET NuGet from the CLI using:\n+```\n+dotnet add package Microsoft.ML\n+```\n+\n+From package manager:\n+```\n+Install-Package Microsoft.ML\n+```\n+\n+### Release Notes\n+\n+Below are some of the highlights from this release.\n+\n+* Added SymSGD learner for binary classification\n+  ([#624](https://github.com/dotnet/machinelearning/pull/624))\n+\n+    * [SymSGD](https://arxiv.org/abs/1705.08030) is a technique for\n+      parallelizing\n+      [SGD](https://en.wikipedia.org/wiki/Stochastic_gradient_descent)\n+      (Stochastic Gradient Descent). This enables it to sometimes perform\n+      faster than existing SGD implementations (e.g. [Hogwild\n+      SGD](https://docs.microsoft.com/en-us/dotnet/api/microsoft.ml.trainers.stochasticgradientdescentbinaryclassifier?view=ml-dotnet)).\n+    * SymSGD is available for binary classification, but can be used in\n+      multiclass classification with\n+      [One-Versus-All](https://docs.microsoft.com/en-us/dotnet/api/microsoft.ml.models.oneversusall?view=ml-dotnet)\n+    * The current implementation in ML.NET does not yet have multi-threading\n+      enabled due to build system limitations (tracked by\n+      [#655](https://github.com/dotnet/machinelearning/issues/655)), but\n+      SymSGD can still be helpful in scenarios where you want to try many\n+      different learners and limit each of them to a single thread. \n+    * Documentation can be found\n+      [here](https://docs.microsoft.com/en-us/dotnet/api/microsoft.ml.trainers.symsgdbinaryclassifier?view=ml-dotnet)\n+\n+* Added Word Embeddings Transform for text scenarios\n+  ([#545](https://github.com/dotnet/machinelearning/pull/545))\n+\n+    * [Word embeddings](https://en.wikipedia.org/wiki/Word_embedding) is a\n+      technique for mapping words to numeric vectors of relatively low\n+      dimension (in comparison with the high dimensional n-gram extraction).\n+      These numeric vectors are intended to capture some of the meaning of the\n+      words so they can be used for training a better model. As an example,\n+      SSWE (Sentiment-Specific Word Embedding) can be useful for sentiment\n+      related tasks.\n+    * This transform enables using pretrained models to get the embeddings","path":"docs/release-notes/0.4/release-0.4.md","position":61,"original_position":61,"commit_id":"80b6d6f15b3273997676ccea95f0a6a183423a66","original_commit_id":"80b6d6f15b3273997676ccea95f0a6a183423a66","user":{"login":"GalOshri","id":2601900,"node_id":"MDQ6VXNlcjI2MDE5MDA=","avatar_url":"https://avatars0.githubusercontent.com/u/2601900?v=4","gravatar_id":"","url":"https://api.github.com/users/GalOshri","html_url":"https://github.com/GalOshri","followers_url":"https://api.github.com/users/GalOshri/followers","following_url":"https://api.github.com/users/GalOshri/following{/other_user}","gists_url":"https://api.github.com/users/GalOshri/gists{/gist_id}","starred_url":"https://api.github.com/users/GalOshri/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/GalOshri/subscriptions","organizations_url":"https://api.github.com/users/GalOshri/orgs","repos_url":"https://api.github.com/users/GalOshri/repos","events_url":"https://api.github.com/users/GalOshri/events{/privacy}","received_events_url":"https://api.github.com/users/GalOshri/received_events","type":"User","site_admin":false},"body":"Yes I'll add this note. Regarding custom pretrained models, let's make sure we cover that in the documentation instead as it is a more advanced scenario.","created_at":"2018-08-07T04:52:05Z","updated_at":"2018-08-07T04:52:05Z","html_url":"https://github.com/dotnet/machinelearning/pull/656#discussion_r208098214","pull_request_url":"https://api.github.com/repos/dotnet/machinelearning/pulls/656","author_association":"CONTRIBUTOR","_links":{"self":{"href":"https://api.github.com/repos/dotnet/machinelearning/pulls/comments/208098214"},"html":{"href":"https://github.com/dotnet/machinelearning/pull/656#discussion_r208098214"},"pull_request":{"href":"https://api.github.com/repos/dotnet/machinelearning/pulls/656"}},"in_reply_to_id":208084295},"pull_request":{"url":"https://api.github.com/repos/dotnet/machinelearning/pulls/656","id":206552708,"node_id":"MDExOlB1bGxSZXF1ZXN0MjA2NTUyNzA4","html_url":"https://github.com/dotnet/machinelearning/pull/656","diff_url":"https://github.com/dotnet/machinelearning/pull/656.diff","patch_url":"https://github.com/dotnet/machinelearning/pull/656.patch","issue_url":"https://api.github.com/repos/dotnet/machinelearning/issues/656","number":656,"state":"open","locked":false,"title":"Add release notes for ML.NET 0.4","user":{"login":"GalOshri","id":2601900,"node_id":"MDQ6VXNlcjI2MDE5MDA=","avatar_url":"https://avatars0.githubusercontent.com/u/2601900?v=4","gravatar_id":"","url":"https://api.github.com/users/GalOshri","html_url":"https://github.com/GalOshri","followers_url":"https://api.github.com/users/GalOshri/followers","following_url":"https://api.github.com/users/GalOshri/following{/other_user}","gists_url":"https://api.github.com/users/GalOshri/gists{/gist_id}","starred_url":"https://api.github.com/users/GalOshri/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/GalOshri/subscriptions","organizations_url":"https://api.github.com/users/GalOshri/orgs","repos_url":"https://api.github.com/users/GalOshri/repos","events_url":"https://api.github.com/users/GalOshri/events{/privacy}","received_events_url":"https://api.github.com/users/GalOshri/received_events","type":"User","site_admin":false},"body":"This adds release notes for ML.NET 0.4. \r\n\r\nNote that some of the documentation links are not available yet. They will start working after the official 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