信息检索的评价指标(Precision, Recall, F-score, MAP)
from: http://blog.csdn.net/Lu597203933/article/details/41802155之前写过一篇blog叫做机器学习实战笔记之非均衡分类问题:http://blog.csdn.net/lu597203933/article/details/38666699其中对Precision和Recall及ROC都有所讲解,其中区别在于Precision,Reca