STOC '98 Proceedings of the thirtieth annual ACM symposium on Theory of computing
Spatial databases with application to GIS
Spatial databases with application to GIS
Qualitative representation of spatial knowledge in two-dimensional space
The VLDB Journal — The International Journal on Very Large Data Bases - Spatial Database Systems
Realm-based spatial data types: the ROSE algebra
The VLDB Journal — The International Journal on Very Large Data Bases
Reasoning about Binary Topological Relations
SSD '91 Proceedings of the Second International Symposium on Advances in Spatial Databases
A Small Set of Formal Topological Relationships Suitable for End-User Interaction
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
FOCS '98 Proceedings of the 39th Annual Symposium on Foundations of Computer Science
GIS: A Computing Perspective, 2nd Edition
GIS: A Computing Perspective, 2nd Edition
IJCAI'95 Proceedings of the 14th international joint conference on Artificial intelligence - Volume 1
An authorization model for geographical maps
Proceedings of the 12th annual ACM international workshop on Geographic information systems
Security and privacy for geospatial data: concepts and research directions
SPRINGL '08 Proceedings of the SIGSPATIAL ACM GIS 2008 International Workshop on Security and Privacy in GIS and LBS
$\mathcal{I}$-SQE: A Query Engine for Answering Range Queries over Incomplete Spatial Databases
KES '09 Proceedings of the 13th International Conference on Knowledge-Based and Intelligent Information and Engineering Systems: Part II
FQAS '09 Proceedings of the 8th International Conference on Flexible Query Answering Systems
A map-layer-based access control model
WISA'11 Proceedings of the 12th international conference on Information Security Applications
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Geographical maps can be represented and manipulated using different data models, each dealing with different map properties: geometrical properties, describing the shape, extension and location of the objects composing the map, combinatorial properties, interpreting the map as a set of disjoint elements satisfying a certain set of combinatorial constraints, and topological properties, describing the topological relationships existing among map objects. These different representations (that we call layers) are typically supported in most geographical systems. However, all existing systems are downward closed, meaning that if some information A is contained in the combinatorial (topological) layer, the information required to compute A must be contained in the geometrical (combinatorial/geometrical) layer. Several applications do not require this closure. Rather, they can benefit from the incomplete representation of the map. The aim of this paper is the definition of a reference framework for integrating various and possibly incomplete representations of geographical maps.