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Logistic model trees

Abstract
Tree induction methods and linear models are popular techniques for supervised learning tasks, both for the prediction of nominal classes and continuous numeric values. For predicting numeric quantities, there has been work on combining these two schemes into ‘model trees’, i.e. trees that contain linear regression functions at the leaves. In this paper, we present an algorithm that adapts this idea for classification problems, using logistic regression instead of linear regression. We use a stagewise fitting process to construct the logistic regression models that can select relevant attributes in the data in a natural way, and show how this approach can be used to build the logistic regression models at the leaves by incrementally refining those constructed at higher levels in the tree. We compare the performance of our algorithm against that of decision trees and logistic regression on 32 benchmark UCI datasets, and show that it achieves a higher classification accuracy on average than the other two methods.
Type
Conference Contribution
Type of thesis
Series
Citation
Date
2003-01-01
Publisher
SPRINGER-VERLAG BERLIN
Degree
Supervisors
Rights
This is an author’s accepted version of a conference paper published in Proceedings of the 14th European Conference on Machine Learning. © 2003 Springer Nature.