Computational geometry: an introduction
Computational geometry: an introduction
Numerical recipes in C: the art of scientific computing
Numerical recipes in C: the art of scientific computing
Selected papers of the 9th annual ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
The DEDALE system for complex spatial queries
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
The CCUBE constraint object-oriented database system
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
The MLPQ/GIS constraint database system
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
Spatial Databases, The Final Frontier
ICDT '95 Proceedings of the 5th International Conference on Database Theory
Algorithms for Cartogram Animation
IDEAS '00 Proceedings of the 2000 International Symposium on Database Engineering & Applications
On the Desirability and Limitations of Linear Spatial Database Models
SSD '95 Proceedings of the 4th International Symposium on Advances in Spatial Databases
Constraint-Based Interoperability of Spatiotemporal Databases
SSD '97 Proceedings of the 5th International Symposium on Advances in Spatial Databases
MLPQ: a linear constraint database system with aggregate operators
IDEAS '97 Proceedings of the 1997 International Symposium on Database Engineering & Applications
A Comparison of Spatio-temporal Interpolation Methods
GIScience '02 Proceedings of the Second International Conference on Geographic Information Science
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Approximate representation of any spatio-temporal variable, by some interpolation function, is necessary when it is measured only sporadically. This paper argues that the approximate representation can be captured by a constraint database. Since constraint databases can be queried via standard query languages - such as relational algebra, SQL and Datalog - this provides an immediate benefit for flexible querying of the data. We propose a concrete system that implements a version of this approach. We also add beyond the standard queries new ones like cartogram similarity queries and an advanced graphical user interface with 3-D animation of GIS-based data.