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Deep Learning with R Cookbook

You're reading from   Deep Learning with R Cookbook Over 45 unique recipes to delve into neural network techniques using R 3.5.x

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Product type Paperback
Published in Feb 2020
Publisher Packt
ISBN-13 9781789805673
Length 328 pages
Edition 1st Edition
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Authors (3):
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Swarna Gupta Swarna Gupta
Author Profile Icon Swarna Gupta
Swarna Gupta
Rehan Ali Ansari Rehan Ali Ansari
Author Profile Icon Rehan Ali Ansari
Rehan Ali Ansari
Dipayan Sarkar Dipayan Sarkar
Author Profile Icon Dipayan Sarkar
Dipayan Sarkar
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Table of Contents (11) Chapters Close

Preface 1. Understanding Neural Networks and Deep Neural Networks 2. Working with Convolutional Neural Networks FREE CHAPTER 3. Recurrent Neural Networks in Action 4. Implementing Autoencoders with Keras 5. Deep Generative Models 6. Handling Big Data Using Large-Scale Deep Learning 7. Working with Text and Audio for NLP 8. Deep Learning for Computer Vision 9. Implementing Reinforcement Learning 10. Other Books You May Enjoy

Dimensionality reduction using autoencoders

Autoencoders can practically learn very interesting data projections that can help to reduce the dimensionality of the data without much data loss in the lower dimensional space. The encoder compresses the input and selects the most important features, also known as latent features, during compression. The decoder is the opposite of encoder, and it tries to recreate the original input as closely as possible. While encoding the original input data, autoencoders try to capture the maximum variance of the data using lesser features. 

In this recipe, we will build a deep autoencoder to extract low dimensional latent features and demonstrate how we can use this lower-dimensional feature set to solve various learning problems such as regression, classification, and more. Dimensionality reduction decreases training time significantly...

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