Concentration of weakly dependent Banach-valued sums and applications to kernel learning methods

Gilles Blanchard, Oleksandr Zadorozhnyi

Published 2017-12-05Version 1

We obtain a new Bernstein-type inequality for sums of Banach-valued random variables satisfying a weak dependence assumption of general type and under certain smoothness assumptions of the underlying Banach norm. We use this inequality in order to investigate in asymptotical regime the error upper bounds for the broad family of spectral regularization methods for reproducing kernel decision rules, when trained on a sample coming from a $\tau-$mixing process.