Symmetric Kernel

A Symmetric Kernel is a kernel function in which the value of the kernel does not depend on the order of the arguments.

• Example(s):
  • a Gaussian kernel: K(x,y)=e−(x−y)2
  • a Linear kernel: K(x,y)=x⋅y
  • a Polynomial kernel: K(x,y)=(x⋅y+c)
  • ...
• See: Symmetric Positive-Definite Kernel.

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