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

Advanced deep learning text classification


Our basic deep learning model is much less complex than the traditional machine learning approach, but its performance is not quite as good. This section looks at some advanced techniques for text classification in deep learning. The following sections explain a number of different approaches and focus on code examples rather than heavy deep explanations. If you are interested in more detail, then look at the book Deep Learning by Goodfellow, Bengio, and Courville (Goodfellow, Ian, et al. Deep learning. Vol. 1. Cambridge: MIT Press, 2016.). Another good reference that covers NLP in deep learning is a book by Yoav Goldberg (Goldberg, Yoav. Neural network methods for natural language processing).

1D convolutional neural network model

We have seen that the bag-of-words approach in traditional NLP approaches ignores sentence structure. Consider applying a sentiment analysis task on the four movie reviews in the following table:

Id

sentence

Rating (1=recommended...