# Fréchet Means for Distributions of Persistence Diagrams

@article{Turner2014FrchetMF,
title={Fr{\'e}chet Means for Distributions of Persistence Diagrams},
author={Katharine Turner and Yuriy Mileyko and Sayan Mukherjee and John Harer},
journal={Discrete \& Computational Geometry},
year={2014},
volume={52},
pages={44-70}
}
• Published 13 June 2012
• Mathematics, Computer Science
• Discrete & Computational Geometry
Given a distribution $$\rho$$ρ on persistence diagrams and observations $$X_{1},\ldots ,X_{n} \mathop {\sim }\limits ^{iid} \rho$$X1,…,Xn∼iidρ we introduce an algorithm in this paper that estimates a Fréchet mean from the set of diagrams $$X_{1},\ldots ,X_{n}$$X1,…,Xn. If the underlying measure $$\rho$$ρ is a combination of Dirac masses $$\rho = \frac{1}{m} \sum _{i=1}^{m} \delta _{Z_{i}}$$ρ=1m∑i=1mδZi then we prove the algorithm converges to a local minimum and a law of large numbers result…
192 Citations

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