H2O Operator Sample

Contents

Introduction
Running the H2O Sample in StreamBase Studio
Importing This Sample into StreamBase Studio
Sample Location

Introduction

This sample shows basic usage of the H2O model evaluator. The scenario uses an audit data dataset from the PMML examples at http://dmg.org/pmml/pmml_examples/index.html.

The EventFlow module in this sample shows an example of runtime binomial classification. The input events contain some demographics data about bank customers. The events leave the flow enriched by the Target information computed by the model.

Running the H2O Sample in StreamBase Studio

Run this sample in Studio as follows:

  1. If you have not yet loaded the H2O Model sample into Studio, follow the steps in Importing This Sample.

  2. Download the GenModel library from http://www.h2o.ai/download/h2o/desktop and install the H20 locally.

  3. In the Package Explorer view, open the models-H2O-sample folder.

  4. Double-click to open the audit.sbapp application.

  5. Make sure the application is the currently active tab in the EventFlow Editor, then click the Run button. This opens the SB Test/Debug perspective and starts the application.

  6. In the Feed Simulations view, select the audit.sbfs file and click Run.

  7. In the Application Output view, select All Output Streams and view the data emitted by the StreamBase application. It should start with tuples similar to the following: 

    Target=0, Age=38.0, Employment=Private, Education=College, Marital=Unmarried, 
  Occupation=Service, Income=81838.0, Gender=Female, Deductions=0.0, Hours=72.0
Target=0, Age=35.0, Employment=Private, Education=Associate, Marital=Absent, 
  Occupation=Transport, Income=72099.0, Gender=Male, Deductions=0.0, Hours=30.0
Target=0, Age=32.0, Employment=Private, Education=HSgrad, Marital=Divorced, 
  Occupation=Clerical, Income=154676.74, Gender=Male, Deductions=0.0, Hours=40.0
Target=0, Age=45.0, Employment=Private, Education=Bachelor, Marital=Married, 
  Occupation=Repair, Income=27743.82, Gender=Male, Deductions=0.0, Hours=55.0
Target=0, Age=60.0, Employment=Private, Education=College, Marital=Married, 
  Occupation=Executive, Income=7568.23, Gender=Male, Deductions=0.0, Hours=40.0
Target=0, Age=74.0, Employment=Private, Education=HSgrad, Marital=Married, 
  Occupation=Service, Income=33144.4, Gender=Male, Deductions=0.0, Hours=30.0
Target=1, Age=43.0, Employment=Private, Education=Bachelor, Marital=Married, 
  Occupation=Executive, Income=43391.17, Gender=Male, Deductions=0.0, Hours=50.0
Target=0, Age=35.0, Employment=Private, Education=Yr12, Marital=Married, 
  Occupation=Machinist, Income=59906.65, Gender=Male, Deductions=0.0, Hours=40.0
Target=0, Age=25.0, Employment=Private, Education=Associate, Marital=Divorced, 
  Occupation=Clerical, Income=126888.91, Gender=Female, Deductions=0.0, Hours=40.0
Target=0, Age=22.0, Employment=Private, Education=HSgrad, Marital=Absent, 
  Occupation=Sales, Income=52466.49, Gender=Female, Deductions=0.0, Hours=37.0
Target=0, Age=48.0, Employment=Private, Education=College, Marital=Divorced, 
  Occupation=Service, Income=291416.11, Gender=Female, Deductions=0.0, Hours=35.0

  8. When done, press F9 or click the Stop Running Application button.

Importing This Sample into StreamBase Studio

In StreamBase Studio, import this sample with the following steps:

  • From the top-level menu, select File → Load StreamBase Sample.

  • Type H2O to narrow the list of options.

  • Select H2O from the StreamBase Model Operators category.

  • Click OK.

StreamBase Studio creates a single project for the H2O operator samples in your current Studio workspace.

Sample Location

When you load the sample into StreamBase Studio, Studio copies the sample project's files to your Studio workspace, which is normally part of your home directory, with full access rights.

Important

Load this sample in StreamBase Studio, and thereafter use the Studio workspace copy of the sample to run and test it, even when running from the command prompt.

Using the workspace copy of the sample avoids the permission problems that can occur when trying to work with the initially installed location of the sample. The default workspace location for this sample is: 

studio-workspace/sample_operator_models_H2O

See Default Installation Directories for the location of studio-workspace on your system.

In the default TIBCO StreamBase installation, this sample's files are initially installed in: 

streambase-install-dir/sample/models-H2O

See Default Installation Directories for the location of streambase-install-dir on your system. This location may require administrator privileges for write access, depending on your platform.