A Framework for Sensitivity Analysis in Spatial Multiple Criteria Evaluation

Authors:
Arika Ligmann-Zielinska;Piotr Jankowski
Affiliations:
Department of Geography, Michigan State University, East Lansing, USA MI 48824-1117;Department of Geography, San Diego State University, San Diego, USA 92182-4493
Venue:
GIScience '08 Proceedings of the 5th international conference on Geographic Information Science
Year:
2008

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Abstract

The paper presents a framework for sensitivity analysis (SA) in spatial multiple criteria evaluation (S-MCE). The framework focuses on three aspects of S-MCE: spatiality, scope, and cardinality. Spatiality stresses the importance of spatial criteria and spatial weights that should be explicitly considered in GIS-based MCE. Scope relates to the extent of SA, ranging from local one-at-a-time criterion examination to global testing of interdependencies among the multiple criteria model components. Cardinality addresses the duality of motivation for performing SA, namely, single-user learning and group consensus building. The framework organizes the existing SA techniques according to spatiality and scope and can be used as a conceptual guide in selecting SA techniques fitting a task at hand.