Book Image

Machine Learning with Amazon SageMaker Cookbook

By : Joshua Arvin Lat
Book Image

Machine Learning with Amazon SageMaker Cookbook

By: Joshua Arvin Lat

Overview of this book

Amazon SageMaker is a fully managed machine learning (ML) service that helps data scientists and ML practitioners manage ML experiments. In this book, you'll use the different capabilities and features of Amazon SageMaker to solve relevant data science and ML problems. This step-by-step guide features 80 proven recipes designed to give you the hands-on machine learning experience needed to contribute to real-world experiments and projects. You'll cover the algorithms and techniques that are commonly used when training and deploying NLP, time series forecasting, and computer vision models to solve ML problems. You'll explore various solutions for working with deep learning libraries and frameworks such as TensorFlow, PyTorch, and Hugging Face Transformers in Amazon SageMaker. You'll also learn how to use SageMaker Clarify, SageMaker Model Monitor, SageMaker Debugger, and SageMaker Experiments to debug, manage, and monitor multiple ML experiments and deployments. Moreover, you'll have a better understanding of how SageMaker Feature Store, Autopilot, and Pipelines can meet the specific needs of data science teams. By the end of this book, you'll be able to combine the different solutions you've learned as building blocks to solve real-world ML problems.
Table of Contents (11 chapters)

Performing dimensionality reduction with the built-in PCA algorithm

In this recipe, we will demonstrate how to use the built-in PCA algorithm to perform dimensionality reduction on a synthetic dataset. Dimensionality reduction involves bringing down the number of columns of a dataset to a smaller number of essential columns. If you're wondering why this is important, it's because some algorithms perform better and faster when dealing with fewer dimensions!

We will use the PCA algorithm on the unlabeled dataset from the Generating a synthetic dataset for analysis and transformation recipe and reduce the number of columns of that dataset from five to two. By using PCA, we will also notice that the resulting values are different from any of the row values from the original dataset.

Getting ready

This recipe continues from Generating a synthetic dataset for analysis and transformation.

How to do it…

The next set of steps focuses on using the unlabeled dataset...