September 2021
Beginner to intermediate
620 pages
15h 30m
English
Content preview from Practical Data Science with Python
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10
Preparing Data for Machine Learning: Feature Selection, Feature Engineering, and Dimensionality Reduction
In this section of the book, we'll be coving machine learning (ML) methods. These methods are used to extract patterns from data, and sometimes predict future events. The data that goes into the algorithms are called features, and we can modify our set of features using feature engineering, feature selection, and dimensionality reduction. We can often improve our ML models dramatically with these methods that we cover here. In this chapter, we'll cover the following topics:
- Feature selection methods, including univariate statistical methods, such as correlation, mutual information score, chi-squared, and other feature selection methods ...