Abstraction-based software development
Communications of the ACM
Abstraction and specification in program development
Abstraction and specification in program development
Object-oriented analysis and design with applications (2nd ed.)
Object-oriented analysis and design with applications (2nd ed.)
The sciences of the artificial (3rd ed.)
The sciences of the artificial (3rd ed.)
Choosing classes in conceptual modeling
Communications of the ACM
Applied Algebra for the Computer Sciences
Applied Algebra for the Computer Sciences
Using Hierarchical Spatial Data Structures for Hierarchical Spatial Reasoning
COSIT '97 Proceedings of the International Conference on Spatial Information Theory: A Theoretical Basis for GIS
Multi-Scale Partitions: Application to Spatial and Statistical Databases
SSD '95 Proceedings of the 4th International Symposium on Advances in Spatial Databases
A Conceptual Model of Wayfinding Using Multiple Levels of Abstraction
Proceedings of the International Conference GIS - From Space to Territory: Theories and Methods of Spatio-Temporal Reasoning on Theories and Methods of Spatio-Temporal Reasoning in Geographic Space
Encoding Spatial Information: The Evidence for Hierarchical Processing
Proceedings of the International Conference GIS - From Space to Territory: Theories and Methods of Spatio-Temporal Reasoning on Theories and Methods of Spatio-Temporal Reasoning in Geographic Space
Improving usability of location-based services with user-centric data querying
EDBT'04 Proceedings of the 2004 international conference on Current Trends in Database Technology
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Humans know how to 'abstract away' detail instinctively. This is a necessary survival trait, since we cannot possibly save in our brain all the detail around us. So we extract only the necessary information for the task at hand. While abstracting, we extract a subset from a very large but finite set of objects around us. If continuing to choose subsets of objects with even more abstract properties we create levels of detail of objects. The structure created by such an abstraction process is a hierarchy. The type of hierarchy depends on the operation used for the abstraction process. Current spatial information systems lack the structures, tools, and operations to handle representations with multiple levels of detail. Very little is known about using hierarchies for the description of ordered levels of detail. This paper explores the relationships between abstraction, levels of detail, and hierarchies first theoretically and then practically with an example from analogue map series.