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

Deep convolutional autoencoder

Luckily, all we have to do is define a convolutional network and reshape our training arrays to the appropriate dimensions to test out how it performs with respect to the task at hand. Thus, we will import some convolutional, MaxPooling, and UpSampling layers, and start building the network. We define the input layer and provide it with the shape of our 64 x 64 colored images. Then, we simply alternate the convolutional and pooling layers until we reach the latent space, which is represented by the second MaxPooling2D layer. The layers leading away from the latent space, on the other hand, must be alternating between convolutional layers and UpSampling layers. The UpSampling layer, as the name suggests, simply increases the representational dimension by repeating the rows and columns of the data from the previous layer:

from keras.layers import...