XGBoost for Imbalanced Data Based on Cost-sensitive Activation Function
For binary classification with category imbalance,acost-sensitive activation function XGBoost algorithm(CSAF-XGBoost) is proposed to promote the ability of recognizing minority samples.When XGBoost algorithm constructs decision trees,unbalanced data will affect split point selection,which lead to mi...
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| Format: | Article |
| Language: | zho |
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Editorial office of Computer Science
2022-05-01
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| Series: | Jisuanji kexue |
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| Online Access: | https://www.jsjkx.com/fileup/1002-137X/PDF/1002-137X-2022-49-5-135.pdf |