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 the different types of prediction problems and how various algorithms aim to solve them. Then, we understood how the different ML algorithms are categorized into supervised, unsupervised, semi-supervised, and reinforcement based on their method of learning from data. Once we had an understanding of the overall problem domain of ML, we understood that H2O AutoML trains only supervised learning ML algorithms and can solve prediction problems in this domain specifically.

Then, we understood which algorithms H2O AutoML trains starting with GLM. To understand GLM, we understood what linear regression is and how it works and what assumptions about the normal distribution of data it has to make to be effective. With these basics in mind, we understood how GLM is generalized to be effective, even if these assumptions of linear regression are met, which is a common case in real life.

Then, we learned about DRF. To understand DRF, we understood what...