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Erschienen in:
2005 | OriginalPaper | Buchkapitel
Modelling the Fuzzy Spatial Extent of Geographical Entities
verfasst von : Cidália Costa Fonte, Weldon A. Lodwick
Erschienen in: Fuzzy Modeling with Spatial Information for Geographic Problems
Verlag: Springer Berlin Heidelberg
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In several situations the spatial extent of geographical entities is uncertain or fuzzy. In such cases the entities may be represented using fuzzy sets through the construction of the herein called “fuzzy geographical entities”. Four sources of fuzziness are identified in the process of constructing geographical entities characterized by predefined attributes through the classification of a tessellation. For each, a method to compute the membership grades to the fuzzy geographical entity is proposed, based on the appropriate semantic interpretation of the grades of membership. The interpretations used are the likelihood view of membership grades, the random set view and the similarity view. A practical example is presented for each case.