Book Image

Advanced Machine Learning with R

By : Cory Lesmeister, Dr. Sunil Kumar Chinnamgari
Book Image

Advanced Machine Learning with R

By: Cory Lesmeister, Dr. Sunil Kumar Chinnamgari

Overview of this book

R is one of the most popular languages when it comes to exploring the mathematical side of machine learning and easily performing computational statistics. This Learning Path shows you how to leverage the R ecosystem to build efficient machine learning applications that carry out intelligent tasks within your organization. You’ll work through realistic projects such as building powerful machine learning models with ensembles to predict employee attrition. Next, you’ll explore different clustering techniques to segment customers using wholesale data and even apply TensorFlow and Keras-R for performing advanced computations. Each chapter will help you implement advanced machine learning algorithms using real-world examples. You’ll also be introduced to reinforcement learning along with its use cases and models. Finally, this Learning Path will provide you with a glimpse into how some of these black box models can be diagnosed and understood. By the end of this Learning Path, you’ll be equipped with the skills you need to deploy machine learning techniques in your own projects.
Table of Contents (30 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

Creating a simple neural network


For this task, we will develop a neural network to answer the question of when the now-defunct Space Shuttle should use its autolanding system. The default decision is to let the crew land the craft. However, the autoland capability may be required for situations of crew incapacitation or adverse effects of gravity upon re-entry after extended orbital operations. This data is based on computer simulations, not actual flights. In reality, the autoland system went through some trials and tribulations and, for the most part, the shuttle astronauts were in charge during the landing process. Here are a couple of links for further background information:

Data understanding and preparation

To start, we will load the necessary packages and put the required ones in the environment. The data is in the MASS package:

> library(magrittr)

> install.packages...