Book Image

Hands-On Neural Networks with Keras

By : Niloy Purkait
Book Image

Hands-On Neural Networks with Keras

By: Niloy Purkait

Overview of this book

Neural networks are used to solve a wide range of problems in different areas of AI and deep learning. Hands-On Neural Networks with Keras will start with teaching you about the core concepts of neural networks. You will delve into combining different neural network models and work with real-world use cases, including computer vision, natural language understanding, synthetic data generation, and many more. Moving on, you will become well versed with convolutional neural networks (CNNs), recurrent neural networks (RNNs), long short-term memory (LSTM) networks, autoencoders, and generative adversarial networks (GANs) using real-world training datasets. We will examine how to use CNNs for image recognition, how to use reinforcement learning agents, and many more. We will dive into the specific architectures of various networks and then implement each of them in a hands-on manner using industry-grade frameworks. By the end of this book, you will be highly familiar with all prominent deep learning models and frameworks, and the options you have when applying deep learning to real-world scenarios and embedding artificial intelligence as the core fabric of your organization.
Table of Contents (16 chapters)
Free Chapter
1
Section 1: Fundamentals of Neural Networks
5
Section 2: Advanced Neural Network Architectures
10
Section 3: Hybrid Model Architecture
13
Section 4: Road Ahead

Network size and representational power

In the previous diagram, we can see four types of basic autoencoding architectures. Shallow autoencoders (an extension of shallow neural networks) are defined by having just one hidden layer of neurons, whereas deep autoencoders can have many layers that perform the encoding and decoding operations. Recall from the previous chapters that deeper neural networks may benefit from additional representational power compared to their shallow counterparts. Since autoencoders qualify as a specific breed of feed-forward networks, this also holds true for them. Additionally, it has been noted that deeper autoencoders may exponentially reduce the computational resources that are required for the network to learn to represent its inputs. It may also greatly reduce the number of training samples that are required for the network to learn a rich compressed...