Book Image

Practical Automated Machine Learning Using H2O.ai

By : Salil Ajgaonkar
Book Image

Practical Automated Machine Learning Using H2O.ai

By: Salil Ajgaonkar

Overview of this book

With the huge amount of data being generated over the internet and the benefits that Machine Learning (ML) predictions bring to businesses, ML implementation has become a low-hanging fruit that everyone is striving for. The complex mathematics behind it, however, can be discouraging for a lot of users. This is where H2O comes in – it automates various repetitive steps, and this encapsulation helps developers focus on results rather than handling complexities. You’ll begin by understanding how H2O’s AutoML simplifies the implementation of ML by providing a simple, easy-to-use interface to train and use ML models. Next, you’ll see how AutoML automates the entire process of training multiple models, optimizing their hyperparameters, as well as explaining their performance. As you advance, you’ll find out how to leverage a Plain Old Java Object (POJO) and Model Object, Optimized (MOJO) to deploy your models to production. Throughout this book, you’ll take a hands-on approach to implementation using H2O that’ll enable you to set up your ML systems in no time. By the end of this H2O book, you’ll be able to train and use your ML models using H2O AutoML, right from experimentation all the way to production without a single need to understand complex statistics or data science.
Table of Contents (19 chapters)
1
Part 1 H2O AutoML Basics
4
Part 2 H2O AutoML Deep Dive
10
Part 3 H2O AutoML Advanced Implementation and Productization

Summary

In this chapter, we understood some of the miscellaneous features of H2O AutoML. We started by understanding the scikit-learn library and getting an idea of its implementation. Then, we saw how we can use the H2OAutoMLClassifier library and the H2OAutoMLRegressor library in a scikit-learn implementation to train AutoML models.

Then, we explored H2O AutoML’s logging system. After that, we implemented a simple experiment where we triggered AutoML training; once it was finished, we extracted the event logs and the training logs in both the Python and R programming languages. Then, we understood the contents of those logs and how that information benefits us in keeping an eye on H2O AutoML functionality.

In the next chapter, we shall further focus on using H2O in production and how we can do so using H2O’s Model Object Optimized.