qiaoguan / deep-ctr-prediction

CTR prediction models based on deep learning(基于深度学习的广告推荐CTR预估模型)
https://github.com/qiaoguan/deep-ctr-prediction
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话说CTR模型的交互类的特征是怎么做的和存储的? #19

Open guotong1988 opened 3 years ago

guotong1988 commented 3 years ago

比如有user有1000W,item有1000W,那么要有 1000W*1000W = 1000000亿 的特征数据?

qiaoguan commented 3 years ago

不是,实际上user和item 有交互的量级就1亿, 最简单的尝试方式,做个hash就ok