https://github.com/edisonleeeee/dcic-2023-solution
DCIC2023 Fraud Risk Identification Competition Solution.
https://github.com/edisonleeeee/dcic-2023-solution
competition solution
Last synced: about 1 month ago
JSON representation
DCIC2023 Fraud Risk Identification Competition Solution.
- Host: GitHub
- URL: https://github.com/edisonleeeee/dcic-2023-solution
- Owner: EdisonLeeeee
- Created: 2023-03-30T04:15:37.000Z (over 2 years ago)
- Default Branch: master
- Last Pushed: 2023-03-30T05:46:06.000Z (over 2 years ago)
- Last Synced: 2025-08-22T12:41:43.255Z (about 2 months ago)
- Topics: competition, solution
- Language: Jupyter Notebook
- Homepage: https://www.dcic-china.com/competitions/10060/
- Size: 20.5 KB
- Stars: 25
- Watchers: 2
- Forks: 5
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# DCIC-2023 科技金融应用：欺诈风险识别
+ A/B榜 0.890x 解决方案
+ B 榜排名 11/1594
# 方案介绍
+ 使用lgb树模型
+ 10折交叉验证，4个不同种子/划分
几个强特：
+ 借贷标记：0或1 （原数据有）
+ 退款标记：0或1（交易金额是否大于0）：这个特征可以和借贷标记构建类似的强特
+ 基于借贷标记和退款标记构建转入次数、转出次数等
+ TF-IDF特征
+ 各种groupby
# 其它开源解决方案
+ 0.889 [GoogleLLP/DCIC2023-Fraud-Risk-Identification](https://github.com/GoogleLLP/DCIC2023-Fraud-Risk-Identification)
+ 0.88x [ZS167275/DCID-2023](https://github.com/ZS167275/DCID-2023)
+ 0.877 [jiangxiaoshuaiya/2023DCIC](https://github.com/jiangxiaoshuaiya/2023DCIC)
# 比赛链接
https://www.dcic-china.com/competitions/10060/