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

Building a perceptron

For now, we will define a perceptron using six specific mathematical representations that demonstrate its learning mechanism. These representations are the inputs, weights, bias term, summation, and the activation function. The output will be functionally elaborate upon here under.

Input

Remember how a biological neuron takes in electrical impulses from its dendrites? Well, the perceptron behaves in a similar fashion, yet it prefers to ingest numbers in lieu of electricity. Essentially, it takes in feature inputs, as shown in the preceding diagram. This particular perceptron only has three input channels, these being x1, x2, and x3. These feature inputs (x1, x2, and x3) can be any independent variable...