Book Image

Hands-On Deep Learning Architectures with Python

By : Yuxi (Hayden) Liu, Saransh Mehta
Book Image

Hands-On Deep Learning Architectures with Python

By: Yuxi (Hayden) Liu, Saransh Mehta

Overview of this book

Deep learning architectures are composed of multilevel nonlinear operations that represent high-level abstractions; this allows you to learn useful feature representations from the data. This book will help you learn and implement deep learning architectures to resolve various deep learning research problems. Hands-On Deep Learning Architectures with Python explains the essential learning algorithms used for deep and shallow architectures. Packed with practical implementations and ideas to help you build efficient artificial intelligence systems (AI), this book will help you learn how neural networks play a major role in building deep architectures. You will understand various deep learning architectures (such as AlexNet, VGG Net, GoogleNet) with easy-to-follow code and diagrams. In addition to this, the book will also guide you in building and training various deep architectures such as the Boltzmann mechanism, autoencoders, convolutional neural networks (CNNs), recurrent neural networks (RNNs), natural language processing (NLP), GAN, and more—all with practical implementations. By the end of this book, you will be able to construct deep models using popular frameworks and datasets with the required design patterns for each architecture. You will be ready to explore the potential of deep architectures in today's world.
Table of Contents (15 chapters)
Free Chapter
1
Section 1: The Elements of Deep Learning
5
Section 2: Convolutional Neural Networks
8
Section 3: Sequence Modeling
10
Section 4: Generative Adversarial Networks (GANs)
12
Section 5: The Future of Deep Learning and Advanced Artificial Intelligence

What are autoencoders?

We just learned and gained practical experience with RBM and its variant, DBN, in the previous sections. Recall that an RBM is composed of an input layer and a hidden layer, which attempts to reconstruct the input data by finding a latent representation of the input. The neural network model autoencoders (AEs) that we will learn about, starting from this section, share a similar idea. A basic AE is made up of three layers: the input, hidden, and output layers. The output layer is a reconstruction of the input through the hidden layer. A general diagram of AE is depicted as follows:

As we can see, when the autoencoder takes in data, it first encodes it to fit the hidden layer, and then it tries to reconstruct it back to the original input data. Meanwhile, the hidden layer can extract a latent representation of the input data. Because of this structure, the...