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TensorFlow Machine Learning Cookbook

You're reading from   TensorFlow Machine Learning Cookbook Over 60 practical recipes to help you master Google's TensorFlow machine learning library

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Product type Paperback
Published in Feb 2017
Publisher Packt
ISBN-13 9781786462169
Length 370 pages
Edition 1st Edition
Languages
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Author (1):
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Nick McClure Nick McClure
Author Profile Icon Nick McClure
Nick McClure
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Toc

Table of Contents (13) Chapters Close

Preface 1. Getting Started with TensorFlow FREE CHAPTER 2. The TensorFlow Way 3. Linear Regression 4. Support Vector Machines 5. Nearest Neighbor Methods 6. Neural Networks 7. Natural Language Processing 8. Convolutional Neural Networks 9. Recurrent Neural Networks 10. Taking TensorFlow to Production 11. More with TensorFlow Index

Reduction to Linear Regression

Support vector machines can be used to fit linear regression. In this chapter, we will explore how to do this with TensorFlow.

Getting ready

The same maximum margin concept can be applied toward fitting linear regression. Instead of maximizing the margin that separates the classes, we can think about maximizing the margin that contains the most (x, y) points. To illustrate this, we will use the same iris data set, and show that we can use this concept to fit a line between sepal length and petal width.

The corresponding loss function will be similar to max Getting ready. Here, Getting ready is half of the width of the margin, which makes the loss equal to zero if a point lies in this region.

How to do it…

  1. First we load the necessary libraries, start a graph, and load the iris dataset. After that, we will split the dataset into train and test sets to visualize the loss on both. Use the following code:
    import matplotlib.pyplot as plt
    import numpy as np
    import tensorflow as tf
    from sklearn...
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