That's because, in a sparse data set, no individual person whose behavior is being recorded is likely to exhibit more than a limited range of behaviors.

这是因为在小型数据集当中，除非其表现超出预先设定的具体范围，否则个人行为是不会被记录下来的。

youdao

That's because, in a sparse data set, no individual person whose behavior is being recorded is likely to exhibit more than a limited range of behaviors.

这是因为在小型数据集当中，除非其表现超出预先设定的具体范围，否则个人行为是不会被记录下来的。

youdao