@patent{BarEliSch08, title = {Kernels and methods for selecting kernels for use in learning machines}, author = {Bartlett, P. L. and Elisseeff, A. and Sch{\"o}lkopf, B.}, howpublished = {United States Patent, No 7353215}, month = apr, year = {2008}, note = {(active)}, doi = {}, month_numeric = {4} }