I have a question about Gaussian kernel. I read the following site.
My question is whether we can extend this to other distances or dissimilarity measures (e.g., Bray-Curtis). When we would like to use spectral clustering, we need to use an affinity matrix. Is Gaussian kernel specific to Euclidian distance? It seems that this package supports Bray-Curtis dissimilarity. However, BC dissimilarity is different from distance.