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Publication

MERCS: Multi-directional Ensembles of Regression and Classification Trees

Book Contribution - Book Chapter Conference Contribution

Learning a function f(X) that predicts Y from X is the archetypal Machine Learning (ML) problem. Typically, both sets of attributes (i.e., X,Y) have to be known before a model can be trained. When this is not the case, or when functions f(X) that predict Y from X are needed for varying X and Y, this may introduce significant overhead (separate learning runs for each function). In this paper, we explore the possibility of omitting the specification of X and Y at training time altogether, by learning a multi-directional, or versatile model, which will allow prediction of any Y from any X. Specifically, we introduce a decision tree-based paradigm that generalizes the well-known Random Forests approach to allow for multi-directionality. The result of these efforts is a novel method called MERCS: Multi-directional Ensembles of Regression and Classification treeS. Experiments show the viability of the approach.
Book: https://www.aaai.org/ocs/index.php/AAAI/AAAI18/paper/view/16875/16735
Pages: 4276 - 4283
Number of pages: 8
ISBN:978-1-57735-800-8
Publication year:2018
BOF-keylabel:yes
IOF-keylabel:yes
Authors from:Higher Education
Accessibility:Open