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

H2O data capabilities during model building

Recall that H2O model building at scale is performed by using H2O 3 or its extension, Sparkling Water, which wraps H2O 3 with Spark capabilities. The H2O 3 API has extensive data capabilities used in the model building process, and the Sparkling Water API inherits these and adds additional capabilities from Spark. These capabilities are broken down into the following three broad categories:

  • Ingesting data from the source to the H2O cluster
  • Manipulating data on the H2O cluster
  • Exporting data from the H2O cluster to an external destination

As emphasized in previous chapters, the H2O cluster architecture (H2O 3 or Sparkling Water) allows model building at an unlimited scale but is abstracted from the data scientist who builds models by coding H2O in the IDE.

H2O data capabilities are overviewed in the following diagram and elaborated subsequently:

Figure 4.1 – The H2O data capabilities...