Abstract #301152

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JSM 2003 Abstract #301152
Activity Number: 371
Type: Contributed
Date/Time: Wednesday, August 6, 2003 : 10:30 AM to 12:20 PM
Sponsor: Biometrics Section
Abstract - #301152
Title: Interactive Construction and Analysis of Trees
Author(s): Simon Urbanek*+
Companies: University of Augsburg
Address: MNF, Augsburg, 86135, Germany
Keywords: classification and regression trees ; model building ; model analysis ; interactive graphics
Abstract:

Tree models are a popular tool for data analysis because of their interpretability and their role as an alternative to commonly used generalized linear models. Trees are easy to explain and therefore it is natural to think of ways of involving domain experts in the model-building process. Most current algorithms for tree construction generate results automatically and do not readily permit substantial user intervention. We propose a visual interactive approach to allow the user to query and amend the tree at any point to incorporate their knowledge in the model. We introduce new graphics to support this editing process. In effect, the user is able to interactively analyze the data and the model simultaneously. This method can be applied both to classification and regression trees. We have incorporated this method in our software for visualization and analysis of trees and forests, KLIMT.

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