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Machine Learning with scikit-learn Quick Start Guide

You're reading from   Machine Learning with scikit-learn Quick Start Guide Classification, regression, and clustering techniques in Python

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Product type Paperback
Published in Oct 2018
Publisher Packt
ISBN-13 9781789343700
Length 172 pages
Edition 1st Edition
Languages
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Author (1):
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Kevin Jolly Kevin Jolly
Author Profile Icon Kevin Jolly
Kevin Jolly
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Table of Contents (10) Chapters Close

Preface 1. Introducing Machine Learning with scikit-learn FREE CHAPTER 2. Predicting Categories with K-Nearest Neighbors 3. Predicting Categories with Logistic Regression 4. Predicting Categories with Naive Bayes and SVMs 5. Predicting Numeric Outcomes with Linear Regression 6. Classification and Regression with Trees 7. Clustering Data with Unsupervised Machine Learning 8. Performance Evaluation Methods 9. Other Books You May Enjoy

Feature engineering for optimization

Engineering the features in your dataset is a concept that is fundamentally used to improve the performance of your model. Fine-tuning the features to the algorithm's design is beneficial, because it can lead to an improvement in accuracy, while reducing the generalization errors at the same time. The different kinds of feature engineering techniques for optimizing your dataset that you will learn are as follows:

  • Scaling
  • Principal component analysis

Scaling

Scaling is the process of standardizing your data so that the values under every feature fall within a certain range, such as -1 to +1. In order to scale the data, we subtract each value of a particular feature with the mean...

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