Book Image

Learn Amazon SageMaker - Second Edition

By : Julien Simon
Book Image

Learn Amazon SageMaker - Second Edition

By: Julien Simon

Overview of this book

Amazon SageMaker enables you to quickly build, train, and deploy machine learning models at scale without managing any infrastructure. It helps you focus on the machine learning problem at hand and deploy high-quality models by eliminating the heavy lifting typically involved in each step of the ML process. This second edition will help data scientists and ML developers to explore new features such as SageMaker Data Wrangler, Pipelines, Clarify, Feature Store, and much more. You'll start by learning how to use various capabilities of SageMaker as a single toolset to solve ML challenges and progress to cover features such as AutoML, built-in algorithms and frameworks, and writing your own code and algorithms to build ML models. The book will then show you how to integrate Amazon SageMaker with popular deep learning libraries, such as TensorFlow and PyTorch, to extend the capabilities of existing models. You'll also see how automating your workflows can help you get to production faster with minimum effort and at a lower cost. Finally, you'll explore SageMaker Debugger and SageMaker Model Monitor to detect quality issues in training and production. By the end of this Amazon book, you'll be able to use Amazon SageMaker on the full spectrum of ML workflows, from experimentation, training, and monitoring to scaling, deployment, and automation.
Table of Contents (19 chapters)
1
Section 1: Introduction to Amazon SageMaker
4
Section 2: Building and Training Models
11
Section 3: Diving Deeper into Training
14
Section 4: Managing Models in Production

Using the built-in frameworks

We've covered XGBoost and scikit-learn already. Now, it's time to see how we can use deep learning frameworks. Let's start with TensorFlow and Keras.

Working with TensorFlow and Keras

In this example, we're going to use TensorFlow 2.4.1 to train a simple convolutional neural network on the Fashion-MNIST dataset (https://github.com/zalandoresearch/fashion-mnist).

Our code is split into two source files: one for the entry point script (fmnist.py) and one for the model (model.py, based on Keras layers). For the sake of brevity, I will only discuss the SageMaker steps. You can find the full code in the GitHub repository for this book:

  1. fmnist.py starts by reading hyperparameters from the command line:
    import tensorflow as tf
    import numpy as np
    import argparse, os
    from model import FMNISTModel
    parser = argparse.ArgumentParser()
    parser.add_argument('--epochs', type=int, default=10)
    parser.add_argument('--learning...