Book Image

R Machine Learning Projects

By : Dr. Sunil Kumar Chinnamgari
Book Image

R Machine Learning Projects

By: Dr. Sunil Kumar Chinnamgari

Overview of this book

R is one of the most popular languages when it comes to performing computational statistics (statistical computing) easily and exploring the mathematical side of machine learning. With this book, you will leverage the R ecosystem to build efficient machine learning applications that carry out intelligent tasks within your organization. This book will help you test your knowledge and skills, guiding you on how to build easily through to complex machine learning projects. You will first learn how to build powerful machine learning models with ensembles to predict employee attrition. Next, you’ll implement a joke recommendation engine and learn how to perform sentiment analysis on Amazon reviews. You’ll also explore different clustering techniques to segment customers using wholesale data. In addition to this, the book will get you acquainted with credit card fraud detection using autoencoders, and reinforcement learning to make predictions and win on a casino slot machine. By the end of the book, you will be equipped to confidently perform complex tasks to build research and commercial projects for automated operations.
Table of Contents (12 chapters)
10
The Road Ahead

Building an automated prose generator with an RNN

In this project, we will attempt to build a character-level language model using an RNN to generate prose given some initial seed characters. The main task of a character-level language model is to predict the next character given all previous characters in a sequence of data. In other words, the function of an RNN is to generate text character by character.

To start with, we feed the RNN a huge chunk of text as input and ask it to model the probability distribution of the next character in the sequence, given a sequence of previous characters. These probability distributions conceived by the RNN model will then allow us to generate new text, one character at a time.

The first requirement for building a language model is to secure a corpus of text that the model can use to compute the probability distribution of various characters...