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Student-Fintech-Modeling-Contest-2023

2023年大学生金融科技建模大赛——省级一等奖方案

赛题地址:https://match.creditscoring.cn/#/SingleItem?id=18

赛题设置:本次比赛的主题是“客户复购行为预测”。银行不仅关注新客户获客,也关注老客户的复购行为,希望增加客户黏性。客户在金融产品和服务上的重复购买行为越多,客户黏性越大。银行可以通过识别这些黏性客户,更好地分析他们的需求,并向他们推送新产品,进行客户关系管理。本次比赛的目标是对客户复购频率的三分类预测。比赛选手需要根据客户信息(包括基础客户画像信息、产品购买行为信息以及第三方客户画像补充信息)预测客户复购行为标签:低频(0)、中频(1)、高频(2),并根据客户平均价值(低频1、中频3、高频5),在独立样本上检验预测准确性(加权准确性)。

数据集&LGB模型参数:链接: https://pan.baidu.com/s/1NskJCb6308Q59a-u4b7j8w?pwd=u5hu 提取码: u5hu

其他:该题目是一个三分类问题,由于标签的权重不同,故在LightGBM的Dataset中加入weight对于模型的预测效果极为重要

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