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

Exploring H2O Sparkling Water

Sparkling Water is an H2O product that combines the fast and scalable ML of H2O with the analytics capabilities of Apache Spark. The combination of both these technologies allows users to make SQL queries for data munging, feed the results to H2O for model training, build and deploy models to production, and then use them for predictions.

H2O Sparkling Water is designed in a way that you can run H2O in regular Spark applications. It has provisions to run the H2O server inside of Spark executors so that the H2O server has access to all the data stored in executors for performing any ML-based computations.

The transparent integration between H2O and Spark provides the following benefits:

  • H2O algorithms, including AutoML, can be used in Spark workflows
  • Application-specific data structures can be transformed and supported between H2O and Spark
  • You can use Spark RDDs as datasets in H2O ML algorithms

Sparkling Water supports two...