A TECHNIQUE FOR THE REMOVAL OF OUTLIERS DURING A COMPUTERIZED MAP GENERALIZATION PROCESS

This paper describes a procedure for the automatic generalisation of ' 'outlier polygons'' within a map. A project undertaken by the Institut e of Terrestrial Ecology (ITE) for the European Commission (EC) has of fered the opportunity to develop this procedure with the intention of adopting it for future generalisation of the ITE Land Cover map (LCMGB ). This procedure is a component part of a wider development that uses both automated and semi-automated GIS techniques. This paper describe s the raster-based procedure, its effects on patch patterns in a lands cape and briefly, how the procedure is used within an overall mapgener alisation process. The wider development is described in Brown and Ful ler (1995 in press).