Book Image

Mastering Predictive Analytics with R - Second Edition

By : James D. Miller, Rui Miguel Forte
Book Image

Mastering Predictive Analytics with R - Second Edition

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 (22 chapters)
Mastering Predictive Analytics with R Second Edition
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
8
Dimensionality Reduction
Index

What is deep learning?


Deep learning (also known by some within the industry as deep structured learning or hierarchical learning, among other titles) is really part of a wider family, or branch, of machine learning methods, as mentioned earlier. These methods are based on learning what is known as representations (that is, where the model discovers from the data the representations, patterns, or rules needed to carry out a desired task or meet an objective), as opposed to task specific algorithms (that is, detailed rules written out or predefined, describing how to perform a specific task).

Note

Representations or feature representations are critical to all types of learning. Feature representations can be learned and predefined manually or defined automatically by the model while analyzing the data.

An alternative to manual instruction

As an alternative to the process of manually creating rules, instructions, or equations deemed essential to solving a problem and then organizing data to be...