Book Image

Pretrain Vision and Large Language Models in Python

By : Emily Webber
4.5 (2)
Book Image

Pretrain Vision and Large Language Models in Python

4.5 (2)
By: Emily Webber

Overview of this book

Foundation models have forever changed machine learning. From BERT to ChatGPT, CLIP to Stable Diffusion, when billions of parameters are combined with large datasets and hundreds to thousands of GPUs, the result is nothing short of record-breaking. The recommendations, advice, and code samples in this book will help you pretrain and fine-tune your own foundation models from scratch on AWS and Amazon SageMaker, while applying them to hundreds of use cases across your organization. With advice from seasoned AWS and machine learning expert Emily Webber, this book helps you learn everything you need to go from project ideation to dataset preparation, training, evaluation, and deployment for large language, vision, and multimodal models. With step-by-step explanations of essential concepts and practical examples, you’ll go from mastering the concept of pretraining to preparing your dataset and model, configuring your environment, training, fine-tuning, evaluating, deploying, and optimizing your foundation models. You will learn how to apply the scaling laws to distributing your model and dataset over multiple GPUs, remove bias, achieve high throughput, and build deployment pipelines. By the end of this book, you’ll be well equipped to embark on your own project to pretrain and fine-tune the foundation models of the future.
Table of Contents (23 chapters)
1
Part 1: Before Pretraining
5
Part 2: Configure Your Environment
9
Part 3: Train Your Model
13
Part 4: Evaluate Your Model
17
Part 5: Deploy Your Model

Why should I shrink my model, and how?

After learning all about how the power of large models can boost your accuracy, you may be wondering, why would I ever consider shrinking my model? The reality is that large models can be very slow to respond to inference requests and expensive to deploy. This is especially true for language and vision applications, including everything from visual searching to dialogue, image-to-music generation, open-domain question-answering, and more. While this isn’t necessarily an issue for training, because the only person waiting for your model to finish is you, it becomes a massive bottleneck in hosting when you are trying to keep your customers happy. As has been well studied, in digital experiences, every millisecond counts. Customers very strictly prefer fast, simple, and efficient interfaces online. This is why we have a variety of techniques in the industry to speed up your model inference without introducing drops in accuracy. Here, we’...