Popularity
9.7
Stable
Activity
9.6
Stable
6,762
623
1,459

Programming language: C#
Latest version: v20191210.1

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README

Machine Learning for .NET

Note: Want to share your feedback on ML.NET? Please take this survey

ML.NET is a cross-platform open-source machine learning framework which makes machine learning accessible to .NET developers while offering a production high quality.

ML.NET allows .NET developers to develop/train their own models and infuse custom machine learning into their applications, using .NET, even without prior expertise in developing or tuning machine learning models while having a powerful end-to-end ML platform covering data loading from dataset files and databases, data transformations and many ML algorithms.

ML.NET was originally developed in Microsoft Research and evolved into a Microsoft internal framework over the last decade being used across many product groups in Microsoft like Windows, Bing, PowerPoint, Excel and more.

ML.NET enables machine learning tasks like classification (for example, support text classification, sentiment analysis), regression (for example, price-prediction), and many other ML tasks such as anomaly detection, time-series-forecast, clustering, ranking, etc.

ML.NET also brings .NET APIs for training models, using models for predictions, as well as the core components of this framework such as learning algorithms, transforms, and ML data structures.

Getting started with machine learning by using ML.NET

If you are new to machine learning, start by learning the basics from this collection of resources targeting ML.NET:

Learn ML.NET

ML.NET Documentation, tutorials and reference

Please check our documentation and tutorials.

See the API Reference documentation.

Sample apps

We have a GitHub repo with ML.NET sample apps with many scenarios such as Sentiment analysis, Fraud detection, Product Recommender, Price Prediction, Anomaly Detection, Image Classification, Object Detection and many more.

In addition to the ML.NET samples provided by Microsoft, we're also highlighting many more samples created by the community showcased in this separate page ML.NET Community Samples

ML.NET videos playlist at YouTube

The ML.NET videos playlist on YouTube contains several short videos. Each video focuses on a particular topic of ML.NET.

Operating systems and processor architectures supported by ML.NET

ML.NET runs on Windows, Linux, and macOS using .NET Core, or Windows using .NET Framework.

64 bit is supported on all platforms. 32 bit is supported on Windows, except for TensorFlow and LightGBM related functionality.

ML.NET Nuget packages status

NuGet Status

Release notes

Check out the [release notes](docs/release-notes) to see what's new.

Using ML.NET packages

First, ensure you have installed .NET Core 2.1 or later. ML.NET also works on the .NET Framework 4.6.1 or later, but 4.7.2 or later is recommended.

Once you have an app, you can install the ML.NET NuGet package from the .NET Core CLI using:

dotnet add package Microsoft.ML

or from the NuGet package manager:

Install-Package Microsoft.ML

Alternatively, you can add the Microsoft.ML package from within Visual Studio's NuGet package manager or via Paket.

Daily NuGet builds of the project are also available in our Azure DevOps feed:

https://pkgs.dev.azure.com/dnceng/public/_packaging/MachineLearning/nuget/v3/index.json

Building ML.NET (For contributors building ML.NET open source code)

To build ML.NET from source please visit our [developers guide](docs/project-docs/developer-guide.md).

codecov

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Release process and versioning

Check out the [release process documentation](docs/release-notes) to understand the different kinds of ML.NET releases.

Contributing

We welcome contributions! Please review our [contribution guide](CONTRIBUTING.md).

Community

Please join our community on Gitter Join the chat at https://gitter.im/dotnet/mlnet

This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behavior in our community. For more information, see the .NET Foundation Code of Conduct.

Code examples

Here is a snippet code for training a model to predict sentiment from text samples. You can find complete samples in samples repo.

var dataPath = "sentiment.csv";
var mlContext = new MLContext();
var loader = mlContext.Data.CreateTextLoader(new[]
    {
        new TextLoader.Column("SentimentText", DataKind.String, 1),
        new TextLoader.Column("Label", DataKind.Boolean, 0),
    },
    hasHeader: true,
    separatorChar: ',');
var data = loader.Load(dataPath);
var learningPipeline = mlContext.Transforms.Text.FeaturizeText("Features", "SentimentText")
        .Append(mlContext.BinaryClassification.Trainers.FastTree());
var model = learningPipeline.Fit(data);

Now from the model we can make inferences (predictions):

var predictionEngine = mlContext.Model.CreatePredictionEngine<SentimentData, SentimentPrediction>(model);
var prediction = predictionEngine.Predict(new SentimentData
{
    SentimentText = "Today is a great day!"
});
Console.WriteLine("prediction: " + prediction.Prediction);

A cookbook that shows how to use these APIs for a variety of existing and new scenarios can be found [here](docs/code/MlNetCookBook.md).

License

ML.NET is licensed under the [MIT license](LICENSE) and it is free to use commercially.

.NET Foundation

ML.NET is a .NET Foundation project.

There are many .NET related projects on GitHub.

  • .NET home repo - links to 100s of .NET projects, from Microsoft and the community.


*Note that all licence references and agreements mentioned in the ML.NET README section above are relevant to that project's source code only.