July 2017
Beginner to intermediate
715 pages
17h 3m
English
Content preview from Java: Data Science Made Easy
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Decision tree libraries
There are several Java libraries that support decision trees:
- Apache Spark: https://spark.apache.org/docs/1.2.0/mllib-decision-tree.html
- JBoost: http://jboost.sourceforge.net
- MAchine Learning for LanguagE Toolkit (MALLET): http://mallet.cs.umass.edu
We will use Waikato Environment for Knowledge Analysis (Weka) to demonstrate how to create a decision tree in Java. Weka is a tool that has a GUI interface that permits analysis of data. It can also be invoked from the command line or through a Java API, which we will use.
As a tree is being built, a variable is selected to split the tree. There are several techniques used to select a variable. The one we use is determined ...
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