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yaoyige123/fraud_detection_project
1. 项目简介 本项目面向信用卡欺诈检测中的极端类别不平衡问题,构建从普通二分类模型到成本敏感业务决策框架的完整实验流程。项目不仅比较 Logistic Regression、RandomForest、XGBoost 等模型的分类性能,还进一步引入采样策略、多随机种子稳定性分析、成本敏感阈值优化、概率校准和两阶段决策框架 ...
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