Abstract
This paper focuses on introducing load balancing spatial analysis into XML/GML/SVG-based WebGIS. We discuss the issues of GML-based spatial data representation and analysis, and design a load balancing middleware to dispense a spatial query and analysis to the server side or the browser side based on the cost of that spatial query. Finally, this paper designs some case studies. The results of the case studies prove that the suggested methods are feasible and operable to support spatial analysis in the Web environment, and have a good performance compared to the server side solution and the browser side solution.
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