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Deep learning methods use data to train neural network algorithms to do a variety of machine learning tasks, such as classification of different classes of objects. Convolutional neural networks are deep learning algorithms that are particularly powerful for analysis of images. This course will teach you how to construct, train and evaluate convolutional neural networks. You will also learn how to improve their ability to learn from data, and how to interpret the results of the training.
Image Processing With Neural NetworksFree
Convolutional neural networks use the data that is represented in images to learn. In this chapter, we will probe data in images, and we will learn how to use Keras to train a neural network to classify objects that appear in images.Introducing convolutional neural networks50 xpImages as data: visualizations100 xpImages as data: changing images100 xpClassifying images50 xpUsing one-hot encoding to represent images100 xpEvaluating a classifier100 xpClassification with Keras50 xpBuild a neural network100 xpCompile a neural network100 xpFitting a neural network model to clothing data100 xpCross-validation for neural network evaluation100 xp
Convolutions are the fundamental building blocks of convolutional neural networks. In this chapter, you will be introducted to convolutions and learn how they operate on image data. You will also see how you incorporate convolutions into Keras neural networks.Convolutions50 xpOne dimensional convolutions100 xpImage convolutions100 xpDefining image convolution kernels100 xpImplementing image convolutions in Keras50 xpConvolutional network for image classification100 xpTraining a CNN to classify clothing types100 xpEvaluating a CNN with test data100 xpTweaking your convolutions50 xpAdd padding to a CNN100 xpAdd strides to a convolutional network100 xpCalculate the size of convolutional layer output50 xp
Convolutional neural networks gain a lot of power when they are constructed with multiple layers (deep networks). In this chapter, you will learn how to stack multiple convolutional layers into a deep network. You will also learn how to keep track of the number of parameters, as the network grows, and how to control this number.Going deeper50 xpCreating a deep learning network100 xpTrain a deep CNN to classify clothing images100 xpWhat is special about a deep network?50 xpHow many parameters?50 xpHow many parameters in a CNN?50 xpHow many parameters in a deep CNN?100 xpPooling operations50 xpWrite your own pooling operation100 xpKeras pooling layers100 xpTrain a deep CNN with pooling to classify images100 xp
Understanding and Improving Deep Convolutional Networks
There are many ways to improve training by neural networks. In this chapter, we will focus on our ability to track how well a network is doing, and explore approaches towards improving convolutional neural networks.Tracking learning50 xpPlot the learning curves100 xpUsing stored weights to predict in a test set100 xpRegularization50 xpAdding dropout to your network100 xpAdd batch normalization to your network100 xpInterpreting the model50 xpExtracting a kernel from a trained network100 xpShape of the weights50 xpVisualizing kernel responses100 xpNext steps50 xp
PrerequisitesIntroduction to Deep Learning in Python
Senior Data Scientist, University of Washington
Ariel Rokem is a Data Scientist at the University of Washington eScience Institute. He received a PhD in neuroscience from UC Berkeley, and postdoctoral training in computational neuroimaging at Stanford. In his work, he develops data science algorithms and tools, and applies them to analysis of neural data. He is also a contributor to multiple open-source software projects in the scientific Python ecosystem.
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