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

Understanding pooling layers

A final consideration when using convolutional layers is to do with the idea of stacking simple cells to detect local patterns and complex cells to downsample representations, as we saw earlier with the cat-brain experiments, and the neocognitron. The convolutional filters we saw behave like simple cells by focusing on specific locations on the input and training neurons to fire, given some stimuli from the local regions of our input image. Complex cells, on the other hand, are required to be less specific to the location of the stimuli. This is where the pooling layer comes in. This technique of pooling intends to reduce the output of CNN layers to more manageable representations. Pooling layers are periodically added between convolutional layers to spatially downsample the outputs of our convolutional layer. All this does is progressively reduce...