摘要
分析了支持向量机理论中核函数与傅立叶变换的关系,证明了基于傅立叶变换的核函数在一定条件下必定满足Mercer条件。在这些结论的基础上,提出了利用傅立叶变换筛选核函数的方法,并给出具体的实例。
The relationships between kernel functions \$K(u,v)\$ based on support vector machines(SVM) theory and Fourier transform are analyzed. It is shown that Mercer condition is satisfied if kernel functions are based on Fourier transform under some conditions. On the basis of the above results, the method that sifts out kernel functions is proposed by Fourier transform, and one concrete example is shown.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第3期10-13,17,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家自然科学基金资助项目(10071097)
