?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=A+Boundary-Sensitive+Approach+to+Qualitative+Location&rft.creator=Bittner%2C+Thomas&rft.creator=Stell%2C+John&rft.subject=Artificial+Intelligence&rft.description=Reasoning+about+the+location+of+regions+in+2-dimensional+space+is+necessarily+based+on+finite+approximations+to+such+regions.+These+finite+approximations+are+often+derived+by+describing+how+a+region+(the+figure)+relates+to+a+frame+of+reference+(the+ground).+The+frame+of+reference+generally+consists+of+regions%2C+or+cells%2C+forming+a+partition+of+the+space+under+consideration.+This+paper+presents+a+new+approach+to+describing+figure-ground+relationships+which+is+able+to+take+account+of+how+the+figure+relates+to+boundaries+between+cells+as+well+as+to+their+interiors.+We+also+provide+a+general+theory+of+how+approximations+to+regions+lead+to+approximations+to+operations+on+regions.+This+theory+is+applied+to+the+case+of+our+boundary-sensitive+model+of+location.+The+paper+concludes+by+indicating+how+interpreting+boundaries+in+a+more+general+sense+should+lead+to+a+theory+dealing+with+generalized+partitions+in+which+the+cells+may+overlap.+The+applications+of+the+theory+developed+here+will+include+qualitative+spatial+reasoning%2C+and+should+have+practical+relevance+to+geographical+information+systems.&rft.date=1998&rft.type=Preprint&rft.type=PeerReviewed&rft.format=application%2Fpostscript&rft.identifier=http%3A%2F%2Fcogprints.org%2F516%2F2%2FBittner-Stell-x.ps&rft.identifier=++Bittner%2C+Thomas+and+Stell%2C+John++(1998)+A+Boundary-Sensitive+Approach+to+Qualitative+Location.++%5BPreprint%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F516%2F