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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

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guotong1988 opened this issue Mar 22, 2021 · 1 comment

guotong1988 commented Mar 22, 2021

比如有user有1000W，item有1000W，那么要有 1000W*1000W = 1000000亿的特征数据？

Owner

qiaoguan commented Jun 3, 2021

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

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