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TensorFlow Machine Learning Cookbook

TensorFlow Machine Learning Cookbook

By : Nick McClure
3.7 (18)
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TensorFlow Machine Learning Cookbook

TensorFlow Machine Learning Cookbook

3.7 (18)
By: Nick McClure

Overview of this book

TensorFlow is an open source software library for Machine Intelligence. The independent recipes in this book will teach you how to use TensorFlow for complex data computations and will let you dig deeper and gain more insights into your data than ever before. You’ll work through recipes on training models, model evaluation, sentiment analysis, regression analysis, clustering analysis, artificial neural networks, and deep learning – each using Google’s machine learning library TensorFlow. This guide starts with the fundamentals of the TensorFlow library which includes variables, matrices, and various data sources. Moving ahead, you will get hands-on experience with Linear Regression techniques with TensorFlow. The next chapters cover important high-level concepts such as neural networks, CNN, RNN, and NLP. Once you are familiar and comfortable with the TensorFlow ecosystem, the last chapter will show you how to take it to production.
Table of Contents (13 chapters)
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12
Index

Introduction


Of all the machine-learning algorithms we have considered thus far, none have considered data as a sequence.To take sequence data into account, we extend neural networks that store outputs from prior iterations. This type of neural network is called a recurrent neural network (RNN).Consider the fully connected network formulation:

Here, the weights are given by Amultiplied by the input layer, x, and then run through an activation function, , which gives the output layer, y.If we have a sequence of input data, , we can adapt the fully connected layer to take prior inputs into account, as follows:

On top of this recurrent iteration to get the next input, we want to get the probability distribution output, as follows:

Once we have a full sequence output, , we can consider the target a number or category by just considering the last output.See the following figure for how a general architecture might work:

Figure 1: To predict a single number, or a category, we take a sequence of inputs...

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