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Abstract:
The regularization functional induced by the graph Laplacian of a random
neighborhood graph based on the data is adaptive in two ways. First it adapts to an underlying
manifold structure and second to the density of the data-generating probability measure.
We identify in this paper the limit of the regularizer and show
uniform convergence over the space of Hoelder functions. As an intermediate
step we derive upper bounds on the covering numbers of Hoelder functions on
compact Riemannian manifolds, which are of independent interest
for the theoretical analysis of manifold-based learning methods.
