Fuzzy spatial queries in digital spatial data libraries

Michael Goodchild, Daniel R. Montello, Peter Fohl, Jon Gottsegen

Research output: Contribution to conferencePaperpeer-review

20 Scopus citations


Three forms of uncertainty have been discussed in the context of geographic information systems: in positions of features, in attributes, and due to generalization. A fourth type occurs with uncertain footprints in digital spatial data libraries, when location is used as the primary key to drive search and retrieval. The concept of a geolibrary is defined. Fuzzy footprints are encountered frequently when the area covered by the query or the information object is defined by a vernacular place-name. Three models are proposed for representing fuzzy footprints. Cartographic display imposes limitations on the visualization of fuzzy footprints. A measure of goodness of fit is proposed and generalized to fuzzy footprints.

Original languageEnglish (US)
Number of pages6
StatePublished - Jan 1 1998
Externally publishedYes
EventProceedings of the 1998 IEEE International Conference on Fuzzy Systems,. Part 2 (of 2) - Anchorage, AK, USA
Duration: May 4 1998May 9 1998


OtherProceedings of the 1998 IEEE International Conference on Fuzzy Systems,. Part 2 (of 2)
CityAnchorage, AK, USA

ASJC Scopus subject areas

  • Chemical Health and Safety
  • Software
  • Safety, Risk, Reliability and Quality


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