Fuzzy Set Approaches to Model Uncertainty in Spatial Data and Geographic Information Systems
Frederick E. Petry, Maria A. Cobb, Ashley B. Morris · Studies in fuzziness and soft computing · 1999
Issues of modeling uncertainty in spatial data is particularly suitable for the use of fuzzy set approaches. We survey the broader existing concerns on accuracy and uncertainty in the GIS community in the development of geographical information systems. In particular we note the current emphasis on the area by very significant government agencies and consortiums. Then we consider the issues involved in developing the modeling of uncertain spatial in the natural framework of object-oriented databases. Finally we give a specific approach for spatial directional relationships using an extension of Allen’s temporal relationships with fuzzy modeling to provide a natural linguistic querying of a spatial database or geographic information system.