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Hands-On Ensemble Learning with Python

You're reading from   Hands-On Ensemble Learning with Python Build highly optimized ensemble machine learning models using scikit-learn and Keras

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Product type Paperback
Published in Jul 2019
Publisher Packt
ISBN-13 9781789612851
Length 298 pages
Edition 1st Edition
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Authors (2):
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Konstantinos G. Margaritis Konstantinos G. Margaritis
Author Profile Icon Konstantinos G. Margaritis
Konstantinos G. Margaritis
George Kyriakides George Kyriakides
Author Profile Icon George Kyriakides
George Kyriakides
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Table of Contents (20) Chapters Close

Preface 1. Section 1: Introduction and Required Software Tools
2. A Machine Learning Refresher FREE CHAPTER 3. Getting Started with Ensemble Learning 4. Section 2: Non-Generative Methods
5. Voting 6. Stacking 7. Section 3: Generative Methods
8. Bagging 9. Boosting 10. Random Forests 11. Section 4: Clustering
12. Clustering 13. Section 5: Real World Applications
14. Classifying Fraudulent Transactions 15. Predicting Bitcoin Prices 16. Evaluating Sentiment on Twitter 17. Recommending Movies with Keras 18. Clustering World Happiness 19. Another Book You May Enjoy

Using scikit-learn

scikit-learn implements both conventional Random Forest trees, as well as Extra Trees. In this section, we will provide basic regression and classification examples with both algorithms, using the scikit-learn implementations.

Random forests for classification

The Random Forests classification class is implemented in RandomForestClassifier, under the sklearn.ensemble package. It has a number of parameters, such as the ensemble's size, the maximum tree depth, the number of samples required to make or split a node, and many more.

In this example, we will try to classify the hand-written digits dataset, using the Random Forest classification ensemble. As usual, we load the required classes and data and...

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