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Advanced Deep Learning with R

You're reading from  Advanced Deep Learning with R

Product type Book
Published in Dec 2019
Publisher Packt
ISBN-13 9781789538779
Pages 352 pages
Edition 1st Edition
Languages
Author (1):
Bharatendra Rai Bharatendra Rai
Profile icon Bharatendra Rai

Table of Contents (20) Chapters

Preface 1. Section 1: Revisiting Deep Learning Basics
2. Revisiting Deep Learning Architecture and Techniques 3. Section 2: Deep Learning for Prediction and Classification
4. Deep Neural Networks for Multi-Class Classification 5. Deep Neural Networks for Regression 6. Section 3: Deep Learning for Computer Vision
7. Image Classification and Recognition 8. Image Classification Using Convolutional Neural Networks 9. Applying Autoencoder Neural Networks Using Keras 10. Image Classification for Small Data Using Transfer Learning 11. Creating New Images Using Generative Adversarial Networks 12. Section 4: Deep Learning for Natural Language Processing
13. Deep Networks for Text Classification 14. Text Classification Using Recurrent Neural Networks 15. Text classification Using Long Short-Term Memory Network 16. Text Classification Using Convolutional Recurrent Neural Networks 17. Section 5: The Road Ahead
18. Tips, Tricks, and the Road Ahead 19. Other Books You May Enjoy

Preparing data for model building

In this chapter, we'll be using the Internet Movie Database (IMDb) movie reviews text data that's available in the Keras package. Note that there is no need to download this data from anywhere as it can be easily accessed from the Keras library using code that we will discuss soon. In addition, this dataset is preprocessed so that text data is converted into a sequence of integers. We cannot use text data directly for model building, and such preprocessing of text data into a sequence of integers is necessary before the data can be used as input for developing deep learning networks.

We will start by loading the imdb data using the dataset_imdb function, where we will also specify the number of most frequent words as 500 using num_words. Then, we'll split the imdb data into train and test datasets. Let's take a look at the...

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