Book Image

Machine Learning at Scale with H2O

By : Gregory Keys, David Whiting
Book Image

Machine Learning at Scale with H2O

By: Gregory Keys, David Whiting

Overview of this book

H2O is an open source, fast, and scalable machine learning framework that allows you to build models using big data and then easily productionalize them in diverse enterprise environments. Machine Learning at Scale with H2O begins with an overview of the challenges faced in building machine learning models on large enterprise systems, and then addresses how H2O helps you to overcome them. You’ll start by exploring H2O’s in-memory distributed architecture and find out how it enables you to build highly accurate and explainable models on massive datasets using your favorite ML algorithms, language, and IDE. You’ll also get to grips with the seamless integration of H2O model building and deployment with Spark using H2O Sparkling Water. You’ll then learn how to easily deploy models with H2O MOJO. Next, the book shows you how H2O Enterprise Steam handles admin configurations and user management, and then helps you to identify different stakeholder perspectives that a data scientist must understand in order to succeed in an enterprise setting. Finally, you’ll be introduced to the H2O AI Cloud platform and explore the entire machine learning life cycle using multiple advanced AI capabilities. By the end of this book, you’ll be able to build and deploy advanced, state-of-the-art machine learning models for your business needs.
Table of Contents (22 chapters)
1
Section 1 – Introduction to the H2O Machine Learning Platform for Data at Scale
5
Section 2 – Building State-of-the-Art Models on Large Data Volumes Using H2O
11
Section 3 – Deploying Your Models to Production Environments
14
Section 4 – Enterprise Stakeholder Perspectives
17
Section 5 – Broadening the View – Data to AI Applications with the H2O AI Cloud Platform

Chapter 9: Production Scoring and the H2O MOJO

We spent the entire previous section learning how to build world-class models against data at scale with H2O. In this chapter, we will learn how to deploy these models and make predictions from them. First, we will cover the background on putting models into production scoring systems. We will then learn how H2O makes this easy and flexible. At the center of this story is the H2O MOJO (short for Model Object, Optimized), a ready-to-deploy scoring artifact that you export from your model building environment. We will learn technically what a MOJO is and how to deploy it. We will then code a simple batch file scoring program and embed a MOJO in it. We will finish with some final notes on the MOJO. Altogether, in this chapter, you will develop the knowledge to deploy H2O models in diverse ways and so begin achieving value from live predictions.

These are the main topics we will cover in this chapter:

  • Relating the model building...