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 focused on how we can implement models that have been trained using H2O AutoML in different scenarios using different technologies to make predictions on different kinds of data.

We started by implementing an AutoML leader model in a scenario where we tried to make predictions on data over a web service. We created a simple web service that was hosted on localhost using Spring Boot and the Apache Tomcat web server. We trained the model on data using AutoML, extracted the leader model as a POJO, and loaded that POJO as a class in the web application. By doing this, the application was able to use the model to make predictions on the data that it received as a POST request, responding with the prediction results.

Then, we looked into another design pattern where we aimed to make predictions on real-time data. We had to implement a system that can simulate the real-time flow of data. We did this with Apache Storm. First, we dived deep into understanding...