Book Image

Accelerate Deep Learning Workloads with Amazon SageMaker

By : Vadim Dabravolski
Book Image

Accelerate Deep Learning Workloads with Amazon SageMaker

By: Vadim Dabravolski

Overview of this book

Over the past 10 years, deep learning has grown from being an academic research field to seeing wide-scale adoption across multiple industries. Deep learning models demonstrate excellent results on a wide range of practical tasks, underpinning emerging fields such as virtual assistants, autonomous driving, and robotics. In this book, you will learn about the practical aspects of designing, building, and optimizing deep learning workloads on Amazon SageMaker. The book also provides end-to-end implementation examples for popular deep-learning tasks, such as computer vision and natural language processing. You will begin by exploring key Amazon SageMaker capabilities in the context of deep learning. Then, you will explore in detail the theoretical and practical aspects of training and hosting your deep learning models on Amazon SageMaker. You will learn how to train and serve deep learning models using popular open-source frameworks and understand the hardware and software options available for you on Amazon SageMaker. The book also covers various optimizations technique to improve the performance and cost characteristics of your deep learning workloads. By the end of this book, you will be fluent in the software and hardware aspects of running deep learning workloads using Amazon SageMaker.
Table of Contents (16 chapters)
1
Part 1: Introduction to Deep Learning on Amazon SageMaker
6
Part 2: Building and Training Deep Learning Models
10
Part 3: Serving Deep Learning Models

Hyperparameter optimization

A SageMaker Automatic Model Tuning job allows you to run multiple training jobs with a unique combination of hyperparameters in parallel. In other words, a single tuning job creates multiple SageMaker training jobs. Hyperparameter tuning allows you to speed up your model development and optimization by trying many combinations of hyperparameters in parallel and iteratively moving toward more optimal combinations. However, it doesn’t guarantee that your model performance will always improve. For instance, if the chosen model architecture is not optimal for the task at hand or your dataset is too small for the chosen model, you are unlikely to see any improvements when running hyperparameter optimizations.

When designing for your tuning job, you need to consider several key parameters of your tuning job, as follows:

  • Search algorithm (or strategy): This defines how SageMaker chooses the next combination of hyperparameters.
  • Hyperparameters...