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Building Machine Learning Systems with Python

You're reading from   Building Machine Learning Systems with Python Explore machine learning and deep learning techniques for building intelligent systems using scikit-learn and TensorFlow

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Product type Paperback
Published in Jul 2018
Publisher
ISBN-13 9781788623223
Length 406 pages
Edition 3rd Edition
Languages
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Authors (3):
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Luis Pedro Coelho Luis Pedro Coelho
Author Profile Icon Luis Pedro Coelho
Luis Pedro Coelho
Willi Richert Willi Richert
Author Profile Icon Willi Richert
Willi Richert
Matthieu Brucher Matthieu Brucher
Author Profile Icon Matthieu Brucher
Matthieu Brucher
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Table of Contents (17) Chapters Close

Preface 1. Getting Started with Python Machine Learning FREE CHAPTER 2. Classifying with Real-World Examples 3. Regression 4. Classification I – Detecting Poor Answers 5. Dimensionality Reduction 6. Clustering – Finding Related Posts 7. Recommendations 8. Artificial Neural Networks and Deep Learning 9. Classification II – Sentiment Analysis 10. Topic Modeling 11. Classification III – Music Genre Classification 12. Computer Vision 13. Reinforcement Learning 14. Bigger Data 15. Where to Learn More About Machine Learning 16. Other Books You May Enjoy

Regression with TensorFlow

We will dive into TensorFlow in a future chapter, but regularized linear regression can be implemented with it, so it's good idea to get a feel for how TensorFlow works.

Details on how TensorFlow is structured will be tackled in Chapter 8, Artificial Neural Networks and Deep Learning. Some of its scaffolding may seem odd, and there will be lots of magic numbers. Still, we will progressively use more of it for some small examples.

Let's try to use the Boston dataset for this experiment.

import tensorflow as tf

TensorFlow requires you to create symbols for all elements it works on. These can be variables or placeholders. The former are symbols that TensorFlow will change, whereas placeholders are externally imposed by TensorFlow.

For regression, we need two placeholders, one for the input features and one for the output we want to match. We will...

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