support Pooling ops with Sequence axis
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# CNTK Examples: Image/Classification/ConvNet ## Overview |Data: |The MNIST dataset (http://yann.lecun.com/exdb/mnist/) of handwritten digits and the CIFAR-10 dataset (http://www.cs.toronto.edu/~kriz/cifar.html) for image classification. |:---------|:--- |Purpose |This folder contains a number of examples that demonstrate how to use CNTK to define convolutional neural networks for image classification. |Network |Convolutional neural networks. |Training |Stochastic gradient descent with momentum. |Comments |See below. ## Running the example ### Getting the data We use the MNIST and CIFAR-10 datasets to demonstrate how to train a `convolutional neural network (CNN)`. CNN has been one of the most popular neural networks for image-related tasks. A very well-known early work on CNN is the [LeNet](http://yann.lecun.com/exdb/publis/pdf/lecun-01a.pdf). In 2012 Alex Krizhevsky, Ilya Sutskever, and Geoffrey Hinton won the ILSVRC-2012 competition using a CNN architecture, [AlexNet](https://papers.nips.cc/paper/4824-imagenet-classification-with-deep-convolutional-neural-networks.pdf). And most state-of-the-art neural networks on image classification tasks today adopt a modified CNN architecture, such as [VGG](../VGG), [GoogLeNet](../GoogLeNet), [ResNet](../ResNet), etc. MNIST and CIFAR-10 datasets are not included in the CNTK distribution but can be easily downloaded and converted by following the instructions in [DataSets/MNIST](../../DataSets/MNIST) and [DataSets/CIFAR-10](../../DataSets/CIFAR-10). We recommend you to keep the downloaded data in the respective folder while downloading, as the configuration files in this folder assumes that by default. ## Details We offer multiple CNN examples, including one for the MNIST dataset, and two for the CIFAR-10 dataset (one with and one without data augmentation). For details, please click the respective links below. ### [Python](./Python) ### [BrainScript](./BrainScript)
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