recall precision定義
Precisioncanbeseenasameasureofquality,andrecallasameasureofquantity.Higherprecisionmeansthatanalgorithmreturnsmorerelevantresultsthan ...,2019年10月28日—Recall(召回率)=TP/(TP+FN)Precision(準確率)=TP/(TP+FP)F1-score=2*Precision*Recall/(Precision+R...
淺談機器學習的效能衡量指標(1) -- 準確率(Accuracy)
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精確率(Precision)=tp/(tp+fp),即陽性的樣本中有幾個是預測正確的。召回率(Recall)=tp/(tp+fn),即事實為真的樣本中有幾個是預測正確的。
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