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

Modeling in Sparkling Water

We saw in Chapter 2, Platform Components and Key Concepts, that Sparkling Water is simply H2O-3 in an Apache Spark environment. From the Python coder's point of view, H2O-3 code is virtually identical to Sparkling Water code. If the code is the same, why have a separate section for modeling in Sparkling Water? There are two important reasons, as outlined here:

  • Sparkling Water enables data scientists to leverage Spark's extensive data processing capabilities.
  • Sparkling Water provides access to production Spark pipelines. We expand upon these reasons next.

Spark is rightly known for its data operations that effortlessly scale with increasing data volume. Since the presence of Spark in an enterprise setting is now almost a given, data scientists should add Spark to their skills toolbelt. This is not nearly as hard as it seems, since Spark can be operated from Python (using PySpark) with data operations written primarily in Spark...