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» Containment of Aggregate Queries
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EDBT
2010
ACM
184views Database» more  EDBT 2010»
15 years 10 months ago
Aggregation of asynchronous electric power consumption time series knowing the integral
More and more data mining algorithms are applied to a large number of long time series issued by many distributed sensors. The consequence of the huge volume of data is that data ...
Raja Chiky, Laurent Decreusefond, Georges Hé...
DATESO
2007
103views Database» more  DATESO 2007»
15 years 5 months ago
Using BMH Algorithm to Solve Subset of XPath Queries
Boyer-Moore-Horspool (BMH) algorithm is commonly used to solve text searching problems. In this paper is used to solve the constraint subset of XPath queries offering effective alg...
David Toth
DGO
2003
127views Education» more  DGO 2003»
15 years 5 months ago
A Geographic Visual Query Composer (GVQC) for Accessing Federal Databases
The paper introduces a query tool which allows users (either database experts or non-specialist users) to visually formulate and execute spatial queries directed to large federal ...
Diansheng Guo
PODS
2004
ACM
115views Database» more  PODS 2004»
16 years 4 months ago
Foundations of Semantic Web Databases
The Semantic Web is based on the idea of adding more machine-readable semantics to web information via annotations written in a language called the Resource Description Framework ...
Claudio Gutiérrez, Carlos A. Hurtado, Alber...
SIGMOD
1997
ACM
107views Database» more  SIGMOD 1997»
15 years 8 months ago
Range Queries in OLAP Data Cubes
A range query applies an aggregation operation over all selected cells of an OLAP data cube where the selection is speci ed by providing ranges of values for numeric dimensions. W...
Ching-Tien Ho, Rakesh Agrawal, Nimrod Megiddo, Ram...