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Authors: Mohamed-Rafik Bouguelia ; Yolande Belaïd and Abdel Belaïd

Affiliation: Université de Lorraine LORIA, France

Keyword(s): Label Noise, Active Learning, Classification, Data Stream.

Related Ontology Subjects/Areas/Topics: Active Learning ; Classification ; On-Line Learning ; Pattern Recognition ; Theory and Methods

Abstract: Mislabelling is a critical problem for stream-based active learning methods because it not only impacts the classification accuracy but also deviates the active learner from querying informative data. Dealing with label noise is omitted by most existing active learning methods. We address this issue and propose an efficient method to identify and mitigate mislabelling errors for active learning in the streaming setting. We first propose a mislabelling likelihood measure to characterize the potentially mislabelled instances. This measure is based on the degree of disagreement among the predicted and the queried class label (given by the labeller). Then, we derive a measure of informativeness that expresses how much the label of an instance needs to be corrected by an expert labeller. Specifically, an instance is worth relabelling if it shows highly conflicting information among the predicted and the queried labels. We show that filtering instances with a high mislabelling likelihood a nd correcting only the filtered instances with a high conflicting information greatly improves the performances of the active learner. Experiments on several real world data prove the effectiveness of the proposed method in terms of filtering efficiency and classification accuracy of the stream-based active learner. (More)

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Paper citation in several formats:
Bouguelia, M.; Belaïd, Y. and Belaïd, A. (2015). Stream-based Active Learning in the Presence of Label Noise. In Proceedings of the International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM; ISBN 978-989-758-076-5; ISSN 2184-4313, SciTePress, pages 25-34. DOI: 10.5220/0005178900250034

@conference{icpram15,
author={Mohamed{-}Rafik Bouguelia. and Yolande Belaïd. and Abdel Belaïd.},
title={Stream-based Active Learning in the Presence of Label Noise},
booktitle={Proceedings of the International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM},
year={2015},
pages={25-34},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005178900250034},
isbn={978-989-758-076-5},
issn={2184-4313},
}

TY - CONF

JO - Proceedings of the International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM
TI - Stream-based Active Learning in the Presence of Label Noise
SN - 978-989-758-076-5
IS - 2184-4313
AU - Bouguelia, M.
AU - Belaïd, Y.
AU - Belaïd, A.
PY - 2015
SP - 25
EP - 34
DO - 10.5220/0005178900250034
PB - SciTePress