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Hands-On Machine Learning with scikit-learn and Scientific Python Toolkits

You're reading from   Hands-On Machine Learning with scikit-learn and Scientific Python Toolkits A practical guide to implementing supervised and unsupervised machine learning algorithms in Python

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Product type Paperback
Published in Jul 2020
Publisher Packt
ISBN-13 9781838826048
Length 384 pages
Edition 1st Edition
Languages
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Author (1):
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Tarek Amr Tarek Amr
Author Profile Icon Tarek Amr
Tarek Amr
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Table of Contents (18) Chapters Close

Preface 1. Section 1: Supervised Learning
2. Introduction to Machine Learning FREE CHAPTER 3. Making Decisions with Trees 4. Making Decisions with Linear Equations 5. Preparing Your Data 6. Image Processing with Nearest Neighbors 7. Classifying Text Using Naive Bayes 8. Section 2: Advanced Supervised Learning
9. Neural Networks – Here Comes Deep Learning 10. Ensembles – When One Model Is Not Enough 11. The Y is as Important as the X 12. Imbalanced Learning – Not Even 1% Win the Lottery 13. Section 3: Unsupervised Learning and More
14. Clustering – Making Sense of Unlabeled Data 15. Anomaly Detection – Finding Outliers in Data 16. Recommender System – Getting to Know Their Taste 17. Other Books You May Enjoy

Installing the imbalanced-learn library

Due to class imbalance, we will need to resample our training data or apply different techniques to get better classification results. Thus, we are going to rely on theimbalanced-learnlibrary here. The project was started in 2014 by Fernando Nogueira. It now offers multiple resampling data techniques, as well as metrics for evaluating imbalanced classification problems. The library's interface is compatible with scikit-learn.

You can download the library via pip by running the following command in your Terminal:

          pip install -U imbalanced-learn
        

Now, you can import and use its different modules in your code, as we will see in the following sections. One of the metrics provided by the library is the geometric mean score. InChapter 8, Ensembles – When One Model is Not Enough, we learned about the true positive rate(TPR),or sensitivity, and the false positive rate (FPR), and we used them...

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