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Ensemble Machine Learning Cookbook

You're reading from   Ensemble Machine Learning Cookbook Over 35 practical recipes to explore ensemble machine learning techniques using Python

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Product type Paperback
Published in Jan 2019
Publisher Packt
ISBN-13 9781789136609
Length 336 pages
Edition 1st Edition
Languages
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Authors (2):
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Vijayalakshmi Natarajan Vijayalakshmi Natarajan
Author Profile Icon Vijayalakshmi Natarajan
Vijayalakshmi Natarajan
Dipayan Sarkar Dipayan Sarkar
Author Profile Icon Dipayan Sarkar
Dipayan Sarkar
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Table of Contents (14) Chapters Close

Preface 1. Get Closer to Your Data 2. Getting Started with Ensemble Machine Learning FREE CHAPTER 3. Resampling Methods 4. Statistical and Machine Learning Algorithms 5. Bag the Models with Bagging 6. When in Doubt, Use Random Forests 7. Boosting Model Performance with Boosting 8. Blend It with Stacking 9. Homogeneous Ensembles Using Keras 10. Heterogeneous Ensemble Classifiers Using H2O 11. Heterogeneous Ensemble for Text Classification Using NLP 12. Homogenous Ensemble for Multiclass Classification Using Keras 13. Other Books You May Enjoy

Implementing a random forest for predicting credit card defaults using scikit-learn

The scikit-learn library implements random forests by providing two estimators: RandomForestClassifier and RandomForestRegressor. They take various parameters, some of which are explained as follows:

  • n_estimators: This parameter is the number of trees the algorithm builds before taking a maximum vote or the average prediction. In general, the higher the number of trees the better the performance and the accuracy of the predictions, but it also costs more in terms of computation.
  • max_features: This parameter is the maximum number of features that the random forest is allowed to try in an individual tree.
  • min_sample_leaf: This parameter determines the minimum number of leaves that are required to split an internal node.
  • n_jobs: This hyperparameter tells the engine how many jobs to run in parallel...
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