Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/16952
Title: Development of Voronoi-based cellular automata-an integrated dynamic model for geographical information systems
Authors: Shi, W 
Pang, MYC
Issue Date: 2000
Publisher: Taylor & Francis
Source: International journal of geographical information science, 2000, v. 14, no. 5, p. 455-474 How to cite?
Journal: International journal of geographical information science 
Abstract: This paper presents a development of the extended Cellular Automata (CA), a Voronoi-based CA, to model dynamic interactions among spatial objects. Cellular automata are efficient models for representing dynamic spatial interactions. A complex global spatial pattern is generated by a set of simple local transition rules. However, its original definition for a two-dimensional array limits its application to raster spatial data only. This paper presents a newly developed Voronoi-based CA in which the CA is extended by using the Voronoi spatial model as its spatial framework. The Voronoi spatial model offers a ready solution to handling neighbourhood relations among spatial objects dynamically. By implementing this model, we have demonstrated that the Voronoi-based CA can model local interactions among spatial objects to generate complex global patterns. The Voronoi-based CA can further model interactions among point, line and polygon objects with irregular shapes and sizes in a dynamic system. Each of these objects possesses its own set of attributes, transition rules and neighbourhood relationships. The Voronoi-based CA models spatial interactions among real entities, such as shops, residential areas, industries and cities. Compared to the original CA, the Voronoi-based CA is a more natural and efficient representation of human knowledge over space.
URI: http://hdl.handle.net/10397/16952
ISSN: 1365-8816
EISSN: 1362-3087
DOI: 10.1080/13658810050057597
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