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ppd_riskcontrolcompetition's Issues

求教

wepe大大,为什么sort_feature_using_xgb里面的lambda取值是400到600,而在bagging_xgb和single_xgb中是5到40?

这行代码可否再进行优化下?

parda = HpOpt(space, ParModelScore).sort_values(["loss"])
parda.to_csv("{}/{}_par_xgb.csv".format(path, title))
paropt = parda.iloc[0, :-1].to_dict()
parda

当我运行的时候 ,我发现这行代码的执行时间好长啊,长到 有可能 kernerl 会挂掉

我们解决方案的一些不足之处

  • 看了TNT团队的solution,发现在特征工程上我们漏掉了一些重要的特征,第三方特征(Third_party字段)是带有period的,我们貌似忽略了这一点

最大的亮点还是特征工程吧,我们在第三方特征上面做了比较详细的分析,主攻构造趋势性特征和统计特征。—— TNT

  • 冠军队的solution, 也提到了对第三方数据带有时段(period)特性,提取其中各个字段的max,min,avg,median作为统计特征,这些都是常用手段,可惜我们忽略掉了period这一点。

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