Book Image

Mastering PyTorch - Second Edition

By : Ashish Ranjan Jha
4 (1)
Book Image

Mastering PyTorch - Second Edition

4 (1)
By: Ashish Ranjan Jha

Overview of this book

PyTorch is making it easier than ever before for anyone to build deep learning applications. This PyTorch deep learning book will help you uncover expert techniques to get the most out of your data and build complex neural network models. You’ll build convolutional neural networks for image classification and recurrent neural networks and transformers for sentiment analysis. As you advance, you'll apply deep learning across different domains, such as music, text, and image generation, using generative models, including diffusion models. You'll not only build and train your own deep reinforcement learning models in PyTorch but also learn to optimize model training using multiple CPUs, GPUs, and mixed-precision training. You’ll deploy PyTorch models to production, including mobile devices. Finally, you’ll discover the PyTorch ecosystem and its rich set of libraries. These libraries will add another set of tools to your deep learning toolbelt, teaching you how to use fastai to prototype models and PyTorch Lightning to train models. You’ll discover libraries for AutoML and explainable AI (XAI), create recommendation systems, and build language and vision transformers with Hugging Face. By the end of this book, you'll be able to perform complex deep learning tasks using PyTorch to build smart artificial intelligence models.
Table of Contents (21 chapters)
20
Index

Deep Reinforcement Learning

Machine learning is usually classified into different paradigms, such as supervised learning, unsupervised learning, semi-supervised, self-supervised learning, and reinforcement learning (RL). Supervised learning requires labeled data and is currently the most popularly used machine learning paradigm. However, applications based on unsupervised and semi-supervised learning, which require few or no labels, have been steadily on the rise, especially in the form of generative models. Better still, the rise of Large Language Models (LLMs) have shown that self-supervised learning (where labels are implicit within the data) is an even more promising machine learning paradigm.

RL, on the other hand, is a different branch of machine learning that is considered to be the closest we have reached in terms of emulating how humans learn. It is an area of active research and development and is in its early stages, with some promising results. A prominent example...