The centroid of the symmetrical Kullback-Leibler distance
Raymond N. J. Veldhuis · IEEE Signal Processing Letters · 2002
This paper discusses the computation of the centroid induced by the symmetrical Kullback-Leibler distance. It is shown that it is the unique zeroing argument of a function which only depends on the arithmetic and the normalized geometric mean of the cluster. An efficient algorithm for its computation is presented. Speech spectra are used as an example.