电脑桌面
添加小米粒文库到电脑桌面
安装后可以在桌面快捷访问

支持向量机(SVM)

支持向量机(SVM)_第1页
1/15
支持向量机(SVM)_第2页
2/15
支持向量机(SVM)_第3页
3/15
核 函数-Kernel Function Kernel Functions Below is a list of some kernel functions available from the existing literature. As was the case with previous articles, every LaTeX notation for the formulas below are readily available from their alternate text html tag. I can not guarantee all of them are perfectly correct, thus use them at your own risk. Most of them have links to articles where they have been originally used or proposed. 1. Linear Kernel The Linear kernel is the simplest kernel function. It is given by the inner product plus an optional constant c. Kernel algorithms using a linear kernel are often equivalent to their non-kernel counterparts, i.e.KPCA with linear kernel is the same as standard PCA. 2. Polynomial Kernel The Polynomial kernel is a non-stationary kernel. Polynomial kernels are well suited for problems where all the training data is normalized. Adjustable parameters are the slope alpha, the constant term c and the polynomial degree d. 3. Gaussian Kernel The Gaussian kernel is an example of radial basis function kernel. Alternatively, it could also be implemented using The adjustable parameter sigma plays a major role in the performance of the kernel, and should be carefully tuned to the problem at hand. If overestimated, the exponential will behave almost linearly and the higher-dimensional projection will start to lose its non-linear power. In the other hand, if underestimated, the function will lack regularization and the decision boundary will be highly sensitive to noise in training data. 4. Exponential Kernel The exponential kernel is closely related to the Gaussian kernel, with only the square of the norm left out. It is also a radial basis function kernel....

1、当您付费下载文档后,您只拥有了使用权限,并不意味着购买了版权,文档只能用于自身使用,不得用于其他商业用途(如 [转卖]进行直接盈利或[编辑后售卖]进行间接盈利)。
2、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。
3、如文档内容存在违规,或者侵犯商业秘密、侵犯著作权等,请点击“违规举报”。

碎片内容

支持向量机(SVM)

确认删除?
VIP
微信客服
  • 扫码咨询
会员Q群
  • 会员专属群点击这里加入QQ群
客服邮箱
回到顶部