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Advanced Deep Learning with R

Advanced Deep Learning with R

By : Rai
4.3 (3)
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Advanced Deep Learning with R

Advanced Deep Learning with R

4.3 (3)
By: Rai

Overview of this book

Deep learning is a branch of machine learning based on a set of algorithms that attempt to model high-level abstractions in data. Advanced Deep Learning with R will help you understand popular deep learning architectures and their variants in R, along with providing real-life examples for them. This deep learning book starts by covering the essential deep learning techniques and concepts for prediction and classification. You will learn about neural networks, deep learning architectures, and the fundamentals for implementing deep learning with R. The book will also take you through using important deep learning libraries such as Keras-R and TensorFlow-R to implement deep learning algorithms within applications. You will get up to speed with artificial neural networks, recurrent neural networks, convolutional neural networks, long short-term memory networks, and more using advanced examples. Later, you'll discover how to apply generative adversarial networks (GANs) to generate new images; autoencoder neural networks for image dimension reduction, image de-noising and image correction and transfer learning to prepare, define, train, and model a deep neural network. By the end of this book, you will be ready to implement your knowledge and newly acquired skills for applying deep learning algorithms in R through real-world examples.
Table of Contents (20 chapters)
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1
Section 1: Revisiting Deep Learning Basics
3
Section 2: Deep Learning for Prediction and Classification
6
Section 3: Deep Learning for Computer Vision
12
Section 4: Deep Learning for Natural Language Processing
17
Section 5: The Road Ahead

Image classification with CNN

In this section, we will use a subset of the CIFAR10 dataset to develop a convolutional neural network-based image classification model and assess its classification performance.

Data preparation

We will keep the data size smaller by using only the first 2,000 images in the training and test data from CIFAR10. This will allow the image classification model to be run on a regular computer or laptop. We will also resize the training and test images from 32 x 32 dimensions to 224 x 224 dimensions to be able to compare classification performance with the pretrained model. The following code includes the necessary preprocessing that we went over earlier in this chapter:

# Selecting first 2000 images...
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