SurfOpt: A New Surface Method for Optimizing the Classification of Imbalanced Dataset

André Rodrigo da Silva, Leonardo Rodrigues, Luciana Rech

Abstract

Imbalanced classes constitute very complex machine learning classification problems, particularly if there are not many examples for training, in which case most algorithms fail to learn discriminant characteristics, and tend to completely ignore the minority class in favour of the model overall accuracy. Datasets with imbalanced classes are common in several machine learning applications, such as sales forecasting and fraud detection. Current strategies for dealing with imbalanced classes rely on manipulation of the datasets as a means of improving classification performance. Instead of optimizing classification boundaries based on some measure of distance to points, this work directly optimizes the decision surface, essentially turning a classification problem into a regression problem. We demonstrate that our approach is competitive in comparison to other classification algorithms for imbalanced classes, in addition to achieving different properties.

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Paper Citation


in Harvard Style

Rodrigo da Silva A., Rodrigues L. and Rech L. (2019). SurfOpt: A New Surface Method for Optimizing the Classification of Imbalanced Dataset.In Proceedings of the 11th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART, ISBN 978-989-758-350-6, pages 724-730. DOI: 10.5220/0007407107240730


in Bibtex Style

@conference{icaart19,
author={André Rodrigo da Silva and Leonardo Rodrigues and Luciana Rech},
title={SurfOpt: A New Surface Method for Optimizing the Classification of Imbalanced Dataset},
booktitle={Proceedings of the 11th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART,},
year={2019},
pages={724-730},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007407107240730},
isbn={978-989-758-350-6},
}


in EndNote Style

TY - CONF

JO - Proceedings of the 11th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART,
TI - SurfOpt: A New Surface Method for Optimizing the Classification of Imbalanced Dataset
SN - 978-989-758-350-6
AU - Rodrigo da Silva A.
AU - Rodrigues L.
AU - Rech L.
PY - 2019
SP - 724
EP - 730
DO - 10.5220/0007407107240730