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» Querying Multidimensional Databases
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ICDE
1998
IEEE
119views Database» more  ICDE 1998»
14 years 8 months ago
Processing Incremental Multidimensional Range Queries in a Direct Manipulation Visual Query
We have developed a MultiMedia Visual Information Seeking (MMVIS) Environment that is the first system to support an integrated approach to the direct manipulation specification o...
Stacie Hibino, Elke A. Rundensteiner
DAWAK
1999
Springer
13 years 11 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 ...
SSDBM
1999
IEEE
108views Database» more  SSDBM 1999»
13 years 11 months ago
Supporting Imprecision in Multidimensional Databases Using Granularities
On-Line Analytical Processing (OLAP) technologies are being used widely, but the lack of effective means of handling data imprecision, which occurs when exact values are not known...
Torben Bach Pedersen, Christian S. Jensen, Curtis ...
SIGMOD
1996
ACM
99views Database» more  SIGMOD 1996»
13 years 11 months ago
A Query Language for Multidimensional Arrays: Design, Implementation, and Optimization Techniques
While much recent research has focussed on extending databases beyond the traditional relational model, relatively little has been done to develop database tools for querying data...
Leonid Libkin, Rona Machlin, Limsoon Wong
SIGMOD
1999
ACM
110views Database» more  SIGMOD 1999»
13 years 11 months ago
Multi-dimensional Selectivity Estimation Using Compressed Histogram Information
The database query optimizer requires the estimation of the query selectivity to find the most efficient access plan. For queries referencing multiple attributes from the same rel...
Ju-Hong Lee, Deok-Hwan Kim, Chin-Wan Chung