开源一个 K 折交叉统计交叉特征的代码,本次比赛的其他代码稍后开源,欢迎关注
代码具体使用方法请参考代码文件中的test()
函数。
注意:加了交叉特征的统计特征之后,线下可能会下降,但是线上会增长的。在腾讯的广告算法大赛中线上比线下高 1.2 个 百分点。天池阿里妈妈的广告算法大赛中,线上比线下高 2.9 个百分点(0.175 -> 0.146),当然不是说交叉特征会有这么好,我只是说,用了这个交叉特征之后,线下会变得很差,但是线上却有可能上升的。
This project forked from wangle1218/advertising-algorithm-competition
2018 腾讯广告算法大赛/IJCAI 阿里妈妈搜索广告转化预测竞赛
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