starER: a conceptual model for data warehouse design
Proceedings of the 2nd ACM international workshop on Data warehousing and OLAP
Spatio-temporal conceptual models: data structures + space + time
Proceedings of the 7th ACM international symposium on Advances in geographic information systems
Object-Based Selective Materialization for Efficient Implementation of Spatial Data Cubes
IEEE Transactions on Knowledge and Data Engineering
Summarizability in OLAP and Statistical Data Bases
SSDBM '97 Proceedings of the Ninth International Conference on Scientific and Statistical Database Management
Pre-aggregation in Spatial Data Warehouses
SSTD '01 Proceedings of the 7th International Symposium on Advances in Spatial and Temporal Databases
Modeling Topological Constraints in Spatial Part-Whole Relationships
ER '01 Proceedings of the 20th International Conference on Conceptual Modeling: Conceptual Modeling
Extending Geographic Databases for a Query Language to Support Queries Involving Statistical Data
SSDBM '00 Proceedings of the 12th International Conference on Scientific and Statistical Database Management
Multidimensional data modeling for location-based services
The VLDB Journal — The International Journal on Very Large Data Bases
Representing spatiality in a conceptual multidimensional model
Proceedings of the 12th annual ACM international workshop on Geographic information systems
Towards a spatial multidimensional model
Proceedings of the 8th ACM international workshop on Data warehousing and OLAP
Integration of Geographic Information into Multidimensional Models
ICCSA '08 Proceeding sof the international conference on Computational Science and Its Applications, Part I
Modelling and querying geographical data warehouses
Information Systems
Processing location-dependent queries with location granules
OTM'07 Proceedings of the 2007 OTM Confederated international conference on On the move to meaningful internet systems - Volume Part II
Benchmarking spatial data warehouses
DaWaK'10 Proceedings of the 12th international conference on Data warehousing and knowledge discovery
The objects interaction Graticule for cardinal direction querying in moving objects data warehouses
ADBIS'10 Proceedings of the 14th east European conference on Advances in databases and information systems
Journal of Systems and Software
On the requirements for user-centric spatial data warehousing and SOLAP
DASFAA'11 Proceedings of the 16th international conference on Database systems for advanced applications
Spatial clustering to uncluttering map visualization in SOLAP
ICCSA'11 Proceedings of the 2011 international conference on Computational science and its applications - Volume Part I
Requirements specification and conceptual modeling for spatial data warehouses
OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part II
Spatial Clustering in SOLAP Systems to Enhance Map Visualization
International Journal of Data Warehousing and Mining
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In Data Warehouses and On-Line Analytical Processing systems hierarchies are used to analyze high volumes of historical data. On the other hand, the advantage of using spatial data in the analysis process is widely recognized. Therefore, in order to satisfy the growing requirements of decision-making users it is necessary to extend hierarchies for representing spatial data. Based on an analysis of real-world spatial applications, this paper defines different kinds of spatial hierarchies and gives a conceptual representation of them. Further, we study the summarizability problem and classify the topological relationships between hierarchy levels according to the procedures required for ensuring correct measure aggregation.