Book Image

Mastering PyTorch

By : Ashish Ranjan Jha
Book Image

Mastering PyTorch

By: Ashish Ranjan Jha

Overview of this book

Deep learning is driving the AI revolution, and PyTorch is making it easier than ever before for anyone to build deep learning applications. This PyTorch book will help you uncover expert techniques to get the most out of your data and build complex neural network models. The book starts with a quick overview of PyTorch and explores using convolutional neural network (CNN) architectures for image classification. You'll then work with recurrent neural network (RNN) architectures 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 and explore the world of generative adversarial networks (GANs). You'll not only build and train your own deep reinforcement learning models in PyTorch but also deploy PyTorch models to production using expert tips and techniques. Finally, you'll get to grips with training large models efficiently in a distributed manner, searching neural architectures effectively with AutoML, and rapidly prototyping models using PyTorch and fast.ai. By the end of this PyTorch book, you'll be able to perform complex deep learning tasks using PyTorch to build smart artificial intelligence models.
Table of Contents (20 chapters)
1
Section 1: PyTorch Overview
4
Section 2: Working with Advanced Neural Network Architectures
8
Section 3: Generative Models and Deep Reinforcement Learning
13
Section 4: PyTorch in Production Systems

Summary

In this chapter, we discussed AutoML, which aims to provide methods for model selection and hyperparameter optimization. AutoML is useful for beginners who have little expertise on making decisions such as how many layers to put in a model, which optimizer to use, and so on. AutoML is also useful for experts to both speed up the model training process and discover superior model architectures for a given task that would be nearly impossible to figure manually.

We looked at two different AutoML tools that can be used with PyTorch. First, we discussed Auto-PyTorch, which does the task of both finding an optimal neural architecture and finding the perfect hyperparameter setting. We used the MNIST handwritten digit classification task from Chapter 1, Overview of Deep Learning Using PyTorch, to find the best model for this task, using Auto-PyTorch. We obtained a best accuracy of 96.4%.

Next, we explored Optuna which is another AutoML tool that automates hyperparameter search...