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Tutorials for creating and using ONNX models
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README.md

ONNX Tutorials

Open Neural Network Exchange (ONNX) is an open standard format for representing machine learning models. ONNX is supported by a community of partners who have implemented it in many frameworks and tools.

These images are available for convenience to get started with ONNX and tutorials on this page

Getting ONNX models

  • Pre-trained models: Many pre-trained ONNX models are provided for common scenarios in the ONNX Model Zoo.
  • Services: Customized ONNX models are generated for your data by cloud based services (see below)
  • Convert models from various frameworks (see below)

Services

Below is a list of services that can output ONNX models customized for your data.

Converting to ONNX format

Framework / Tool Installation Tutorial
Caffe apple/coremltools and onnx/onnxmltools Example
Caffe2 part of caffe2 package Example
Chainer chainer/onnx-chainer Example
Cognitive Toolkit (CNTK) built-in Example
CoreML (Apple) onnx/onnxmltools Example
Keras onnx/keras-onnx Example
LibSVM onnx/onnxmltools Example
LightGBM onnx/onnxmltools Example
MATLAB Deep Learning Toolbox Example
ML.NET built-in Example
MXNet (Apache) part of mxnet package docs github Example
PyTorch part of pytorch package Example1, Example2, export for Windows ML, Extending support
SciKit-Learn onnx/sklearn-onnx Example
SINGA (Apache) - Github (experimental) built-in Example
TensorFlow onnx/tensorflow-onnx Examples

Scoring ONNX Models

Once you have an ONNX model, it can be scored with a variety of tools.

Framework / Tool Installation Tutorial
Caffe2 Caffe2 Example
Cognitive Toolkit (CNTK) built-in Example
CoreML (Apple) onnx/onnx-coreml Example
MATLAB Deep Learning Toolbox Converter Documentation and Examples
Menoh Github Packages or from Nuget Example
ML.NET Microsoft.ML Nuget Package Example
MXNet (Apache) - Github MXNet API
Example
ONNX Runtime Python (Pypi) - onnxruntime and onnxruntime-gpu
C/C# (Nuget) - Microsoft.ML.OnnxRuntime and Microsoft.ML.OnnxRuntime.Gpu
APIs: Python, C#, C, C++
Examples - Python, C#, C
SINGA (Apache) - Github [experimental] built-in Example
Tensorflow onnx-tensorflow Example
TensorRT onnx-tensorrt Example
Windows ML Pre-installed on Windows 10 API
Tutorials - C++ Desktop App, C# UWP App
Examples

End-to-End Tutorials

Serving

ONNX as an intermediary format

Conversion to deployment

Other ONNX tools

Contributing

We welcome improvements to the convertor tools and contributions of new ONNX bindings. Check out contributor guide to get started.

Use ONNX for something cool? Send the tutorial to this repo by submitting a PR.

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