• jeudi 17 novembre 2005 : Salle de conférences du département GII de Polytech'Marseille
  
  
  • 15h30 : GIS Theory - Pr. Andrew U. Frank
    Technical University of Vienna, Austria (GeoInformation Institute)
    
    Résumé :
    What is the theory behind the current generation of Geographic Information Systems?
    What needs to be incuded to cover temporal information and construct dynamic GIS?
    What should students learn that is likely valid in 10 or 15 years? How can we combine the different mathematical theories?
    
    
  
  
  
  • 14h00 : A tiered Ontology and how it helps with treatment of error and uncertainty - Pr. Andrew U. Frank
    Technical University of Vienna, Austria (GeoInformation Institute)
    
    Résumé :
    I divide the world in tiers, where we have a tier 1 which includes observation in points, a tier 2 which includes physical objects and a tier 3 including the objects constructed by social agreement. The description of the world for these tiers are useful for the discussion and organisation of management of data quality. Observations of tier 1 have errors which are distributed statistically; other limitations follow a fuzzy logic (for example classificaton errors).