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» A Parallel Algebra for Object Databases
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ISSADS
2005
Springer
14 years 1 months ago
Extending Databases to Precision-Controlled Retrieval of Qualitative Information
A hierarchy is an arrangement of qualitative values in a tree with certain properties. Hierarchies allow to define the confusion conf(r, s) in using qualitative value r instead of ...
Victor-Polo de Gyves, Adolfo Guzmán-Arenas,...
DOOD
1997
Springer
155views Database» more  DOOD 1997»
13 years 11 months ago
Incremental Updates for Materialized OQL Views
Abstract. This work discusses the CROQUE approach to the maintenance problem for materialized views. In a CROQUE database, application-speci ed collections (type extents or classes...
Dieter Gluche, Torsten Grust, Christof Mainberger,...
PDP
2008
IEEE
14 years 1 months ago
Distributed Sparse Spatial Selection Indexes
Searching for similar objects in metric-space databases can be efficiently solved by using index data structures. A number of alternative sequential indexes have been proposed in...
Veronica Gil Costa, Mauricio Marín
61
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GIS
2008
ACM
14 years 8 months ago
An operation-independent approach to extend 2D spatial operations to 3D and moving objects
It has been pointed out repeatedly that spatial operations must be extended to include support for 3D and moving objects. The attempt to code by hand each spatial operation for ea...
Farid Karimipour, Andrew U. Frank, Mahmoud Reza De...
VLDB
1998
ACM
138views Database» more  VLDB 1998»
13 years 11 months ago
TOPAZ: a Cost-Based, Rule-Driven, Multi-Phase Parallelizer
Currently the key problems of query optimization are extensibility imposed by object-relational technology, as well as query complexity caused by forthcoming applications, such as...
Clara Nippl, Bernhard Mitschang