Diversities and the Geometry of Hypergraphs.

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Bibliographic Details
Title: Diversities and the Geometry of Hypergraphs.
Authors: Bryant, David1 david.bryant@otago.ac.nz, Tupper, Paul F.2 pft3@math.sfu.ca
Source: Discrete Mathematics & Theoretical Computer Science (DMTCS). 2014, Vol. 16 Issue 2, p1-20. 20p.
Subjects: Fuzzy hypergraphs, Embeddings (Mathematics), Geometry, Mathematical optimization, Data analysis, Tree graphs, Graphic methods
Abstract: The embedding of finite metrics in l1 has become a fundamental tool for both combinatorial optimization and largescale data analysis. One important application is to network flow problems as there is close relation between max-flow min-cut theorems and the minimal distortion embeddings of metrics into l1. Here we show that this theory can be generalized to a larger set of combinatorial optimization problems on both graphs and hypergraphs. This theory is not built on metrics and metric embeddings, but on diversities, a type of multi-way metric introduced recently by the authors. We explore diversity embeddings, l1 diversities, and their application to Steiner Tree Packing and Hypergraph Cut problems. [ABSTRACT FROM AUTHOR]
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Abstract:The embedding of finite metrics in l1 has become a fundamental tool for both combinatorial optimization and largescale data analysis. One important application is to network flow problems as there is close relation between max-flow min-cut theorems and the minimal distortion embeddings of metrics into l1. Here we show that this theory can be generalized to a larger set of combinatorial optimization problems on both graphs and hypergraphs. This theory is not built on metrics and metric embeddings, but on diversities, a type of multi-way metric introduced recently by the authors. We explore diversity embeddings, l1 diversities, and their application to Steiner Tree Packing and Hypergraph Cut problems. [ABSTRACT FROM AUTHOR]
ISSN:13658050