Title
Continuous-Flow Graph Transportation Distances.
Abstract
Optimal transportation distances are valuable for comparing and analyzing probability distributions, but larger-scale computational techniques for the theoretically favorable quadratic case are limited to smooth domains or regularized approximations. Motivated by fluid flow-based transportation on $mathbb{R}^n$, however, this paper introduces an alternative definition of optimal transportation between distributions over graph vertices. This new distance still satisfies the triangle inequality but has better scaling and a connection to continuous theories of transportation. It is constructed by adapting a Riemannian structure over probability distributions to the graph case, providing transportation distances as shortest-paths in probability space. After defining and analyzing theoretical properties of our new distance, we provide a time discretization as well as experiments verifying its effectiveness.
Year
Venue
Field
2016
arXiv: Other Computer Science
Discrete mathematics,Graph,Discretization,Vertex (geometry),Computer science,Quadratic equation,Probability distribution,Fluid dynamics,Triangle inequality,Scaling
DocType
Volume
Citations 
Journal
abs/1603.06927
4
PageRank 
References 
Authors
0.50
18
4
Name
Order
Citations
PageRank
Justin Solomon182748.48
Raif M. Rustamov225119.58
Leonidas J. Guibas3130841262.73
Adrian Butscher442313.41