Information Sciences: an International Journal
Towards maintaining consistency of spatial databases
CIKM '97 Proceedings of the sixth international conference on Information and knowledge management
A spatial model for complex objects with a broad boundary supporting queries on uncertain data
Data & Knowledge Engineering
A Canonical Model for a Class of Areal Spatial Objects
SSD '93 Proceedings of the Third International Symposium on Advances in Spatial Databases
Towards a Formal Model for Multi-Resolution Spatial Maps
SSD '95 Proceedings of the 4th International Symposium on Advances in Spatial Databases
On the Assessment of Generalisation Consistency
SSD '97 Proceedings of the 5th International Symposium on Advances in Spatial Databases
Spatial data methods and vague regions: A rough set approach
Applied Soft Computing
Reasoning about topological relations between regions with broad boundaries
International Journal of Approximate Reasoning
A system of types and operators for handling vague spatial objects
International Journal of Geographical Information Science
The enhancement of the cell-based GIS analyses with fuzzy processing capabilities
Information Sciences: an International Journal
Qualitative reasoning about consistency in geographic information
Information Sciences: an International Journal
Linguistic modelling of imperfect spatial information as a basis for simplifying spatial analysis
Information Sciences: an International Journal
Fuzzy description of topological relations I: a unified fuzzy 9-intersection model
ICNC'05 Proceedings of the First international conference on Advances in Natural Computation - Volume Part III
Fuzzy description of topological relations II: computation methods and examples
ICNC'05 Proceedings of the First international conference on Advances in Natural Computation - Volume Part III
Inconsistency issues in spatial databases
Inconsistency Tolerance
Modeling and querying fuzzy spatiotemporal databases
Information Sciences: an International Journal
Efficient processing of spatial joins with DOT-based indexing
Information Sciences: an International Journal
Information Sciences: an International Journal
A method for extracting rules from spatial data based on rough fuzzy sets
Knowledge-Based Systems
Hi-index | 0.07 |
Multi-resolution or multi-scale spatial databases store and manage multiple representations of spatial objects in the same area, so consistency among multiple representations of the same objects should be evaluated and maintained. Although many approaches have been proposed to check inconsistencies in multi-resolution databases, there is still a lack of effective approaches working for complex objects, especially for regions with broad boundaries which is a general model for representing various types of uncertainties. This paper presents approaches for evaluating structural and topological consistency among multiple representations of complex regions with broad boundaries (CBBRs) based on map generalization operators: merging, dropping, and hybrid of these two. For evaluation of structural consistency, all possible multiple representations of a CBBR are generated automatically and organized into a structured neighborhood graph, and then correspondences and equivalences among the multiple representations are defined to determine whether two representations at different levels of detail are structurally consistent. For evaluation of topological consistency, the topological relations between all pairs of regions in two CBBRs are considered, and their variation with change of spatial scale is analyzed. Since the approaches in this paper are built on a hiearchical representation of CBBRs with arbitrarily complex structure, they will also work well for evaluating consistency among multiple representations of complex objects.