在数据量比较大的情况下，数据预处理有时候会非常耗费时间。 可以利用 joblib 中的 Parallel 和 delayed 进行多CPU并行处理
I\'ve been writing Windows Services for a while and they always seem to work fine for things that开发者_开发问答 need to run every day, few times a week, once a month, etc. but I\'ve been lately think
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