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A new metric between distributions of point processes
Published online by Cambridge University Press: 01 July 2016
Most metrics between finite point measures currently used in the literature have the flaw that they do not treat differing total masses in an adequate manner for applications. This paper introduces a new metric d̅1 that combines positional differences of points under a closest match with the relative difference in total mass in a way that fixes this flaw. A comprehensive collection of theoretical results about d̅1 and its induced Wasserstein metric d̅2 for point process distributions are given, including examples of useful d̅1-Lipschitz continuous functions, d̅2 upper bounds for the Poisson process approximation, and d̅2 upper and lower bounds between distributions of point processes of independent and identically distributed points. Furthermore, we present a statistical test for multiple point pattern data that demonstrates the potential of d̅1 in applications.
- Stochastic Geometry and Statistical Applications
- Advances in Applied Probability , Volume 40 , Issue 3 , September 2008 , pp. 651 - 672
- Copyright © Applied Probability Trust 2008
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