![](http://dl2.iteye.com/upload/attachment/0097/2243/f8def00b-957c-3b8f-bcf5-6a41b0f2edca.jpg)
比较相似性
比较两个事物的相似程度,有欧几里得距离和皮尔逊相似性,欧几里得距离比较简单,不多说,皮尔逊相似性适用于特征量不规范(各个特征不成线性)的情况,范围更广,也更麻烦。计算公式为:
![](http://dl2.iteye.com/upload/attachment/0097/2243/f8def00b-957c-3b8f-bcf5-6a41b0f2edca.jpg)
猜你喜欢
转载自onmyway-1985.iteye.com/blog/2067701
今日推荐
周排行