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Wide&Deep代码中对所有sparse特征只用一个embedding #470

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lhbrichard opened this issue Jun 23, 2021 · 2 comments
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Wide&Deep代码中对所有sparse特征只用一个embedding #470

lhbrichard opened this issue Jun 23, 2021 · 2 comments

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@lhbrichard
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wide deep代码里对sparse特征先做embedding，查看代码发现是直接统计所有sparse特征取值不同的数值，作为sparse_feature_number，来初始化一个embedding layer的，那这样子做岂不是不同sparse feature有同个值，embedding后的结果是一样的，比如A字段也有数值2，B字段也有数值2，这样子是不是没有区分度了
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@frankwhzhang
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需要自己对多个特征值进行id的区分

@lhbrichard
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看来可以用一个字典来做 好的了解了 谢谢～

@yinhaofeng yinhaofeng mentioned this issue Aug 5, 2021
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@frankwhzhang @lhbrichard