Open mr-easy opened 4 years ago
Sorry for replying so late, for some reason this issue has slipped through.
The inputs to the kernel function can be high-dimensional vectors; its result will be a scalar value. The covariance matrix has as many rows and columns as there are samples in the dataset and the kernel function is evaluated for each pair in the matrix.
I hope this clears things up!
I am a bit confused with the dimension of the kernel function.
What is n here? Are we having a 1-dimensional regression problem or n-dimensional? The covariance matrix should be nxn, while the kernel will give just a scalar real value?
Sorry for adding it as an issue. Can't find any way to comment.
And THANKS a lot for this great article, really helpful.