查准與召回（Precision & Recall）

Precision & Recall 先看下面這張圖來理解了，后面再具體分析。下面用P代表Precision，R代表Recall 通俗的講，Precision 就是檢索出來的條目中（比 ...

{Reship}Precision, Accuracy & Recall

============================================================== This aritcle came from here ...