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Kernel based online learning for imbalance multiclass classification
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DOI：10.1016/j.neucom.2017.02.102.png)
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In this paper, we propose a weighted online sequential extreme learning machine with kernels (WOSELMK) for class imbalance learning (CIL). The existing online sequential extreme learning machine (OSELM) methods for CIL use random feature mapping. WOS-ELMK is the first OS-ELM method which uses kernel mapping for online class imbalance learning. The kernel mapping avoids the non-optimal hidden node problem associated with weighted OS-ELM (WOS-ELM) and other existing OS-ELM methods for CIL. WOS-ELMK tackles both the binary class and multiclass imbalance problems in one-by-one as well as chunk-by-chunk learning modes. For imbalanced big data streams, a fixed size window scheme is also implemented for WOS-ELMK. We empirically show that WOS-ELMK obtains superior performance in general than some recently proposed CIL approaches on 17 binary class and 8 multiclass imbalanced datasets. (C) 2017 Published by Elsevier B.V.
Keyword:
Class imbalance
Extreme learning machine (ELM)
Kernel learning
Multiclass
Online learning
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IF:
6.5
论文数:
2.5W
被引数:
6.5W
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