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• W3136232889 abstract "Online class imbalance learning deals with data streams that are affected by both concept drift and class imbalance. Online learning tries to find a trade-off between exploiting previously learned information and incorporating new information into the model. This requires both the incremental update of the model and the ability to unlearn outdated information. The improper use of unlearning, however, can lead to the retroactive interference problem, a phenomenon that occurs when newly learned information interferes with the old information and impedes the recall of previously learned information. The problem becomes more severe when the classes are not equally represented, resulting in the removal of minority information from the model. In this work, we propose the Drift-Aware Multi-Memory Model (DAM3), which addresses the class imbalance problem in online learning for memory-based models. DAM3 mitigates class imbalance by incorporating an imbalance-sensitive drift detector, preserving a balanced representation of classes in the model, and resolving retroactive interference using a working memory that prevents the forgetting of old information. We show through experiments on real-world and synthetic datasets that the proposed method mitigates class imbalance and outperforms the state-of-the-art methods." @default.
• W3136232889 created "2021-03-29" @default.
• W3136232889 creator A5073993382 @default.
• W3136232889 creator A5089247128 @default.
• W3136232889 date "2020-12-10" @default.
• W3136232889 modified "2023-09-26" @default.
• W3136232889 title "Drift-Aware Multi-Memory Model for Imbalanced Data Streams" @default.
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• W3136232889 doi "https://doi.org/10.1109/bigdata50022.2020.9378101" @default.
• W3136232889 hasPublicationYear "2020" @default.
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