Add CNTK <-> Onnx tutorials

README.md

@@ -6,7 +6,7 @@
 | --- | --- | --- | --- |
 | [Caffe2](http://caffe2.ai) | [onnx/onnx-caffe2](https://github.com/onnx/onnx-caffe2) | [Exporting](tutorials/Caffe2OnnxExport.ipynb) | [Importing](tutorials/OnnxCaffe2Import.ipynb) |
 | [PyTorch](http://pytorch.org/) | [part of pytorch package](http://pytorch.org/docs/master/onnx.html) | [Exporting](tutorials/PytorchOnnxExport.ipynb), [Extending support](tutorials/PytorchAddExportSupport.md) | coming soon |
-| [CNTK](https://github.com/Microsoft/CNTK) | coming soon | coming soon | coming soon |
+| [CNTK](https://github.com/Microsoft/CNTK) | [part of CNTK](https://docs.microsoft.com/en-us/cognitive-toolkit/setup-cntk-on-your-machine) | [Exporting](tutorials/CntkOnnxExport.ipynb) | [Importing](tutorials/OnnxCntkImport.ipynb) |
 | [Apache MXNet](http://mxnet.incubator.apache.org/) | [onnx/onnx-mxnet](https://github.com/onnx/onnx-mxnet) | coming soon | [Importing](tutorials/OnnxMxnetImport.ipynb) [experimental] |
 | [TensorFlow](https://www.tensorflow.org/) | [onnx/onnx-tensorflow](https://github.com/onnx/onnx-tensorflow) | coming soon | [Importing](tutorials/OnnxTensorflowImport.ipynb) [experimental] |
 | [Apple CoreML](https://developer.apple.com/documentation/coreml) | [onnx/onnx-coreml](https://github.com/onnx/onnx-coreml) | - | [Importing](tutorials/OnnxCoremlImport.ipynb) |

tutorials/CntkOnnxExport.ipynb

@@ -0,0 +1,100 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Exporting models from CNTK to ONNX"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "In this tutorial, we will demonstrate how to export a CNTK model to the ONNX format."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Installation"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "To export to ONNX, simply make sure you have CNTK 2.3 or higher installed. <br>\n",
+    "Follow CNTK installation instructions __[here](https://docs.microsoft.com/en-us/cognitive-toolkit/Setup-CNTK-on-your-machine)__."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Exporting in Python"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "To save a CNTK model to the ONNX format, specify the ONNX format in the format parameter of the save function."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "```python\n",
+    "import cntk as C\n",
+    "\n",
+    "x = C.input_variable(<input shape>)\n",
+    "z = create_model(x)\n",
+    "z.save(<path of where to save your ONNX model>, format=C.ModelFormat.ONNX)\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Exporting in C# #"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "```csharp\n",
+    "var x = CNTKLib.InputVariable(<specify input variable parameters>);\n",
+    "Function z = CreateModel(x);\n",
+    "z.Save(<path of where to save your ONNX model>, ModelFormat.ONNX);\n",
+    "```\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "anaconda-cloud": {},
+  "kernelspec": {
+   "display_name": "Python [Root]",
+   "language": "python",
+   "name": "Python [Root]"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.5.2"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}

tutorials/OnnxCntkImport.ipynb

@@ -0,0 +1,95 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Importing models from ONNX to CNTK"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "In this tutorial, we will demonstrate how to import ONNX models into CNTK."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Installation"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "To export to ONNX, simply make sure you have CNTK 2.3 or higher installed. <br>\n",
+    "Follow CNTK installation instructions __[here](https://docs.microsoft.com/en-us/cognitive-toolkit/Setup-CNTK-on-your-machine)__."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Importing in Python"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "To load an ONNX model, specify the ONNX format for the format parameter of the load function."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "```python\n",
+    "import cntk as C\n",
+    "\n",
+    "z = C.Function.load(<path of your ONNX model>, format=C.ModelFormat.ONNX)\n",
+    "```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Importing in C# #"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "```csharp\n",
+    "Function modelFunc = Function.load(<path of your ONNX model>, ModelFormat.ONNX);\n",
+    "```"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python [Root]",
+   "language": "python",
+   "name": "Python [Root]"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.5.2"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}