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Authors: Ronny Hänsch and Olaf Hellwich

Affiliation: Technische Universität Berlin, Germany

ISBN: 978-989-758-088-8

Keyword(s): Random Forest, Randomized trees, Binary decision trees, Visualization.

Related Ontology Subjects/Areas/Topics: Abstract Data Visualization ; Computer Vision, Visualization and Computer Graphics ; General Data Visualization ; Information and Scientific Visualization ; Software Visualization ; Visual Analytical Reasoning

Abstract: Ensemble learning techniques and in particular Random Forests have been one of the most successful machine learning approaches of the last decade. Despite their success, there exist barely suitable visualizations of Random Forests, which allow a fast and accurate understanding of how well they perform a certain task and what leads to this performance. This paper proposes an exemplar-driven visualization illustrating the most important key concepts of a Random Forest classifier, namely strength and correlation of the individual trees as well as strength of the whole forest. A visual inspection of the results enables not only an easy performance evaluation but also provides further insights why this performance was achieved and how parameters of the underlying Random Forest should be changed in order to further improve the performance. Although the paper focuses on Random Forests for classification tasks, the developed framework is by no means limited to that and can be easily applied t o other tree-based ensemble learning methods. (More)

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Paper citation in several formats:
Hänsch R. and Hellwich O. (2015). Performance Assessment and Interpretation of Random Forests by Three-dimensional Visualizations.In Proceedings of the 6th International Conference on Information Visualization Theory and Applications - Volume 1: IVAPP, (VISIGRAPP 2015) ISBN 978-989-758-088-8, pages 149-156. DOI: 10.5220/0005310901490156

@conference{ivapp15,
author={Ronny Hänsch and Olaf Hellwich},
title={Performance Assessment and Interpretation of Random Forests by Three-dimensional Visualizations},
booktitle={Proceedings of the 6th International Conference on Information Visualization Theory and Applications - Volume 1: IVAPP, (VISIGRAPP 2015)},
year={2015},
pages={149-156},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005310901490156},
isbn={978-989-758-088-8},
}

TY - CONF

JO - Proceedings of the 6th International Conference on Information Visualization Theory and Applications - Volume 1: IVAPP, (VISIGRAPP 2015)
TI - Performance Assessment and Interpretation of Random Forests by Three-dimensional Visualizations
SN - 978-989-758-088-8
AU - Hänsch R.
AU - Hellwich O.
PY - 2015
SP - 149
EP - 156
DO - 10.5220/0005310901490156

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