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使用比赛方提供的脱敏数据,进行客户信贷流失预测。**根据比赛方要求,无法开源数据。**
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- [x] Version 1: CMTR_CHURN_PR 传统机器学习 **XGBoost**
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- AUC: 0.9743255659575887
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- Score: 0.9296077646587952
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- AUC: 0.6145
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- [x] Version 2: CMTR_CHURN_PR_V2 人工神经网络 **ANN**
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- 遇到的问题:
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- 遇到的问题:AUC和准确率提升依旧很难,模型效果比较差。AUC: 0.6511318268787747 | Score: 0.74
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- 解决思路:使用PCA主成分分析法,进行特征降维, 准确率依旧下降,出现特征工程无效的情况,原因未知。AUC: 0.5801404503216607
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- [x] Version 3: CMTR_CHURN_PR_V4 变量分箱 | XGB | RF | TabNet | AutoML
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- [x] Version 4: CMTR_CHURN_PR_V4 变量分箱 | XGB | RF | TabNet | AutoML
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- 经过特征选择后(TOP30),对字符型变量进行独热编码,对数值型去除量纲,并进行等间距分箱,num_bins = 6
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1. XGB: AUC: 0.6046600198503995 | Score: 0.775887943971986
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2. RandomForest: AUC: 0.6046600198503995 | Score: 0.7712606303151576

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