Continuous and Random Vapnik-Chervonenkis Classes
arXiv:0802.0068 · doi:10.1007/s11856-009-0094-x
Abstract
We show that if is a dependent theory then so is its Keisler randomisation . In order to do this we generalise the notion of a Vapnik-Chervonenkis class to families of -valued functions (a \emph{continuous} Vapnik-Chervonenkis class), and we characterise families of functions having this property via the growth rate of the mean width of an associated family of convex compacts.