Book Image

Hands-On Transfer Learning with Python

By : Dipanjan Sarkar, Nitin Panwar, Raghav Bali, Tamoghna Ghosh
Book Image

Hands-On Transfer Learning with Python

By: Dipanjan Sarkar, Nitin Panwar, Raghav Bali, Tamoghna Ghosh

Overview of this book

Transfer learning is a machine learning (ML) technique where knowledge gained during training a set of problems can be used to solve other similar problems. The purpose of this book is two-fold; firstly, we focus on detailed coverage of deep learning (DL) and transfer learning, comparing and contrasting the two with easy-to-follow concepts and examples. The second area of focus is real-world examples and research problems using TensorFlow, Keras, and the Python ecosystem with hands-on examples. The book starts with the key essential concepts of ML and DL, followed by depiction and coverage of important DL architectures such as convolutional neural networks (CNNs), deep neural networks (DNNs), recurrent neural networks (RNNs), long short-term memory (LSTM), and capsule networks. Our focus then shifts to transfer learning concepts, such as model freezing, fine-tuning, pre-trained models including VGG, inception, ResNet, and how these systems perform better than DL models with practical examples. In the concluding chapters, we will focus on a multitude of real-world case studies and problems associated with areas such as computer vision, audio analysis and natural language processing (NLP). By the end of this book, you will be able to implement both DL and transfer learning principles in your own systems.
Table of Contents (14 chapters)

Deep learning-based image classification

Convolutional Neural Networks (CNNs) are at the heart of this deep learning revolution for improving the task of image classification. CNNs are specialized neural networks to handle image data. As a quick brush-up, CNNs help us infer shift and space invariant features through their shared weight architectures, and are basically a variant of feed forward networks. We have already covered the basics of CNNs in detail in Chapter 3, Understanding Deep Learning Architectures, and Chapter 5, Unleashing the Power of Transfer Learning. Before we move on, readers are encouraged to have a quick refresher for a better understanding. The following image showcases a typical CNN in action:

A typical CNN [Source: https://en.wikipedia.org/wiki/File:Typical_cnn.png]

Neural networks arrived on the scene of image classification competitions as early as 2011...