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C. Schötz

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Preprint Oct 2026

Finite-Sample Bounds for Fr\'echet Means of Dependent Data in Metric Spaces with Curvature Bounded Above

We prove finite-sample risk bounds for empirical quadratic and power Fr\'echet means in geodesic metric spaces with curvature bounded above for observations with arbitrary joint law. We compare the sample with exchangeable copies in which one observation is redrawn independently of the original sample and the others mo...

Zoraida F. Rico, C. Schötz · 0 citations

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