Book Image

Deep Learning with R for Beginners

By : Mark Hodnett, Joshua F. Wiley, Yuxi (Hayden) Liu, Pablo Maldonado
Book Image

Deep Learning with R for Beginners

By: Mark Hodnett, Joshua F. Wiley, Yuxi (Hayden) Liu, Pablo Maldonado

Overview of this book

Deep learning has a range of practical applications in several domains, while R is the preferred language for designing and deploying deep learning models. This Learning Path introduces you to the basics of deep learning and even teaches you to build a neural network model from scratch. As you make your way through the chapters, you’ll explore deep learning libraries and understand how to create deep learning models for a variety of challenges, right from anomaly detection to recommendation systems. The Learning Path will then help you cover advanced topics, such as generative adversarial networks (GANs), transfer learning, and large-scale deep learning in the cloud, in addition to model optimization, overfitting, and data augmentation. Through real-world projects, you’ll also get up to speed with training convolutional neural networks (CNNs), recurrent neural networks (RNNs), and long short-term memory networks (LSTMs) in R. By the end of this Learning Path, you’ll be well-versed with deep learning and have the skills you need to implement a number of deep learning concepts in your research work or projects.
Table of Contents (23 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

Traffic sign recognition using CNN


As always, we begin by exploring the German Traffic Sign Recognition Benchmark (GTSRB) dataset at http://benchmark.ini.rub.de/?section=gtsrb&subsection=dataset.

Getting started with exploring GTSRB

The GTSRB dataset, compiled and generously published by the real-time computer vision research group in Institut für Neuroinformatik, was originally used for a competition of classifying single images of traffic signs. It consists of a training set of 39,209 labeled images and a testing test of 12,630 unlabeled images. The training dataset contains 43 classes—43 types of traffic signs. We will go through all classes and exhibit several samples for each class.

The dataset can be downloaded via  http://benchmark.ini.rub.de/Dataset/GTSRB_Final_Training_Images.zip (located in the Downloads | Training dataset section on the page). Unzip the downloaded file and there will be a folder called Images containing 43 folders (00000, 00001... up to 00042); they represent...