摘要: 6-Support Vector RegressionFor the regression with squared error, we discuss the kernel ridge regression.With the knowledge of kernel function, could ... 阅读全文
posted @ 2015-08-27 11:13 windniu 阅读(301) 评论(0) 推荐(0)
摘要: 5-Kernel Logistic RegressionLast class, we learnt about soft margin and its application. Now, a new idea comes to us, could weapply the kernel trick t... 阅读全文
posted @ 2015-08-26 11:53 windniu 阅读(375) 评论(0) 推荐(0)
摘要: Thus we want to use some methods to deal with the situation of overfitting to noise.Reminding us of the approach of pocket, instinction called us.(We ... 阅读全文
posted @ 2015-08-24 16:31 windniu 阅读(184) 评论(0) 推荐(0)
摘要: For the naive thought to practise my academic English skill, the rest of my notes will be wrriten in my terrrible English.XDIf you have any kind of un... 阅读全文
posted @ 2015-08-21 22:33 windniu 阅读(233) 评论(0) 推荐(0)
摘要: 2-Dual Support Vector Machine在实际问题中,我们可能需要映射变换来做出特殊形状的分界线,这种维度的增加常常会使得二次规划问题面临挑战。这里有很多数学性很强的的过程,需要参考最优化书籍。首先总体思路,先要将一个有条件的最优化问题转化为无条件的,利用了拉格朗日的项在新构建式子... 阅读全文
posted @ 2015-08-21 09:30 windniu 阅读(113) 评论(0) 推荐(0)
摘要: 1-Linear Support Vector Machine我们将这种定义为margin,则之前判断最优划分的问题转化为寻找最大margain的问题。对于待选的几个w所表示的线,问题转化成利用对应w比较相对距离的问题。此时定义w为方向向量,b为之前的w0,即bia。由于w就是所求点到直线的法线方向... 阅读全文
posted @ 2015-08-20 21:23 windniu 阅读(146) 评论(0) 推荐(0)
摘要: 开学前还有一段时间,正好差不多可以follow台大Hsuan-Tien Lin老师Machine Learning Techniques这门课:不过只输入信息而不输出效率太低,所以建个博客记录一下。 阅读全文
posted @ 2015-08-20 11:15 windniu 阅读(127) 评论(0) 推荐(0)
点击右上角即可分享
微信分享提示