![240](https://upload.jianshu.io/users/upload_avatars/19503148/91cbee4f-a3f2-46fe-a0d6-660bbf83eed5.jpg?imageMogr2/auto-orient/strip|imageView2/1/w/240/h/240)
首先,拉格朗日乘子法和kkt條件都是解決數(shù)學(xué)中最優(yōu)化問(wèn)題的方法。什么時(shí)候會(huì)用到這種方法呢仍源?比如心褐,求解函數(shù),直接求關(guān)于x的一階導(dǎo)數(shù)笼踩,讓一階導(dǎo)數(shù)為0逗爹,便得到取最小值時(shí)的最優(yōu)解為1...
1搓茬、引言 數(shù)據(jù)預(yù)處理的主要任務(wù)如下:(1)數(shù)據(jù)清理:填寫(xiě)空缺值犹赖,平滑噪聲數(shù)據(jù),識(shí)別卷仑,刪除孤立點(diǎn)峻村,解決不一致性(2)數(shù)據(jù)集成:集成多個(gè)數(shù)據(jù)庫(kù),數(shù)據(jù)立方體锡凝,文件(3)數(shù)據(jù)變換:規(guī)...