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- W4308459555 abstract "• Imbalance can be mitigated by rebalancing (costs, population) or ensemble learning • Asymmetric label switching creates diversity in ensemble learning • Rebalancing and switching can be combined in a principled way • Optimum decision thresholds for these combinations are analytically derived • A gating network aggregating the learners contributions improves performance Asymmetric label switching is an effective and principled method for creating a diverse ensemble of learners for imbalanced classification problems. This technique can be combined with other rebalancing mechanisms, such as those based on cost policies or class proportion modifications. In this study, and under the Bayesian theory framework, we specify the optimal decision thresholds for the combination of these mechanisms. In addition, we propose using a gating network to aggregate the learners contributions as an additional mechanism to improve the overall performance of the system." @default.
- W4308459555 created "2022-11-12" @default.
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- W4308459555 date "2023-03-01" @default.
- W4308459555 modified "2023-09-24" @default.
- W4308459555 title "Optimum Bayesian thresholds for rebalanced classification problems using class-switching ensembles" @default.
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- W4308459555 doi "https://doi.org/10.1016/j.patcog.2022.109158" @default.
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