Spatial topology and its structural analysis based on the concept of simplicial complex

Bin Jiang*, Itzhak Omer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

This paper introduces a model that identifies spatial relationships for structural analysis based on the concept of simplicial complex. The spatial relationships are identified through overlapping two map layers, namely a primary layer and a contextual layer. The identified spatial relationships are represented as a simplical complex, in which simplices and vertices, respectively, represent two layers of objects. The model relies on the simplical complex for structural representation and analysis. To quantify structural properties of individual primary objects (or equivalently simplices), and the simplicial complex as a whole, we define a set of centrality measures by considering multidimensional chains of connectivity, i.e. the number of contextual objects shared by a pair of primary objects. With the model, the interaction and relationships with a geographic system are modeled from both local and global perspectives. The structural properties and modeling capabilities are illustrated by a simple example and a case study applied to the structural analysis of an urban system.

Original languageEnglish
Pages (from-to)943-960
Number of pages18
JournalTransactions in GIS
Volume11
Issue number6
DOIs
StatePublished - Dec 2007

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