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Mastering Predictive Analytics with R, Second Edition

Mastering Predictive Analytics with R, Second Edition

By : James D. Miller , Rui Miguel Forte
5 (1)
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Mastering Predictive Analytics with R, Second Edition

Mastering Predictive Analytics with R, Second Edition

5 (1)
By: James D. Miller , Rui Miguel Forte

Overview of this book

R offers a free and open source environment that is perfect for both learning and deploying predictive modeling solutions. With its constantly growing community and plethora of packages, R offers the functionality to deal with a truly vast array of problems. The book begins with a dedicated chapter on the language of models and the predictive modeling process. You will understand the learning curve and the process of tidying data. Each subsequent chapter tackles a particular type of model, such as neural networks, and focuses on the three important questions of how the model works, how to use R to train it, and how to measure and assess its performance using real-world datasets. How do you train models that can handle really large datasets? This book will also show you just that. Finally, you will tackle the really important topic of deep learning by implementing applications on word embedding and recurrent neural networks. By the end of this book, you will have explored and tested the most popular modeling techniques in use on real- world datasets and mastered a diverse range of techniques in predictive analytics using R.
Table of Contents (16 chapters)
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8
8. Dimensionality Reduction
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15
Index

Summary


In this chapter, we introduced the idea of (and purpose for) data dimensional reduction: reducing the total number of observations to consider when creating a predictive model.

The most common methods, strategies, and concepts for reduction were reviewed, including correlated data analysis, reporting on correlation, PCA, ICA, and factor analysis.

In the next chapter, we think about how several trained models can work together as an ensemble, in order to produce a single model that is more powerful than the individual models involved.

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