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Python Data Science Essentials

You're reading from   Python Data Science Essentials A practitioner's guide covering essential data science principles, tools, and techniques

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Product type Paperback
Published in Sep 2018
Publisher Packt
ISBN-13 9781789537864
Length 472 pages
Edition 3rd Edition
Languages
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Authors (2):
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Luca Massaron Luca Massaron
Author Profile Icon Luca Massaron
Luca Massaron
Alberto Boschetti Alberto Boschetti
Author Profile Icon Alberto Boschetti
Alberto Boschetti
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Toc

Table of Contents (11) Chapters Close

Preface 1. First Steps 2. Data Munging FREE CHAPTER 3. The Data Pipeline 4. Machine Learning 5. Visualization, Insights, and Results 6. Social Network Analysis 7. Deep Learning Beyond the Basics 8. Spark for Big Data 9. Strengthen Your Python Foundations 10. Other Books You May Enjoy

Testing and validating

After loading our data, preprocessing it, creating new, useful features, checking for outliers and other inconsistent data points, and finally choosing the right metric, we are ready to apply a machine learning algorithm.

A machine learning algorithm, by observing a series of examples and pairing them with their outcome, is able to extract a series of rules that can be successfully generalized to new examples by correctly guessing their resulting outcome. Such is the supervised learning approach, where it applies a series of highly specialized learning algorithms that we expect can correctly predict (and generalize) on any new data.

But how can we correctly apply the learning process in order to achieve the best model for prediction to be generally used with similar yet new data?

In data science, there are some best practices to be followed that can assure...

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