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» Groupwise Processing of Relational Queries
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GIS
1998
ACM
14 years 9 months ago
Natural-Language Spatial Relations Between Linear and Areal Objects: The Topology and Metric of English-Language Terms
Spatial relations are the basis for many selections users perform when they query geographic information systems (GISs). Although such query languages use natural-language-like te...
A. Rashid B. M. Shariff, Max J. Egenhofer, David M...
EDBT
2010
ACM
177views Database» more  EDBT 2010»
14 years 12 months ago
PerK: personalized keyword search in relational databases through preferences
Keyword-based search in relational databases allows users to discover relevant information without knowing the database schema or using complicated queries. However, such searches...
Kostas Stefanidis, Marina Drosou, Evaggelia Pitour...
DAWAK
1999
Springer
15 years 2 months ago
Implementation of Multidimensional Index Structures for Knowledge Discovery in Relational Databases
Efficient query processing is one of the basic needs for data mining algorithms. Clustering algorithms, association rule mining algorithms and OLAP tools all rely on efficient quer...
Stefan Berchtold, Christian Böhm, Hans-Peter ...
JIIS
2000
111views more  JIIS 2000»
14 years 9 months ago
Multidimensional Index Structures in Relational Databases
Abstract. Efficient query processing is one of the basic needs for data mining algorithms. Clustering algorithms, association rule mining algorithms and OLAP tools all rely on effi...
Christian Böhm, Stefan Berchtold, Hans-Peter ...
BTW
2005
Springer
108views Database» more  BTW 2005»
15 years 3 months ago
Integrating the Relational Interval Tree into IBM's DB2 Universal Database Server
: User-defined data types such as intervals require specialized access methods to be efficiently searched and queried. As database implementors cannot provide appropriate index str...
Christoph Brochhaus, Jost Enderle, Achim Schlosser...