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» Extended Query Answering Using Integrity Rules
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VLDB
2007
ACM
104views Database» more  VLDB 2007»
14 years 9 months ago
Extending XQuery with Window Functions
This paper presents two extensions for XQuery. The first extension allows the definition and processing of different kinds of windows over an input sequence; i.e., tumbling, slidi...
Irina Botan, Peter M. Fischer, Daniela Florescu, D...
PODS
2003
ACM
114views Database» more  PODS 2003»
14 years 8 months ago
Soft stratification for magic set based query evaluation in deductive databases
In this paper we propose a new bottom-up query evaluation method for stratified deductive databases based on the Magic Set approach. As the Magic Sets rewriting may lead to unstra...
Andreas Behrend
AAAI
2006
13 years 10 months ago
Using the Semantic Web to Integrate Ecoinformatics Resources
We demonstrate an end-to-end use case of the semantic web's utility for synthesizing ecological and environmental data. ELVIS (the Ecosystem Location Visualization and Inform...
Cynthia Sims Parr, Andriy Parafiynyk, Joel Sachs, ...
LPNMR
2007
Springer
14 years 2 months ago
GrinGo : A New Grounder for Answer Set Programming
We describe a new grounder system for logic programs under answer set semantics, called GrinGo. Our approach combines and extends techniques from the two primary grounding approach...
Martin Gebser, Torsten Schaub, Sven Thiele
GIS
2007
ACM
14 years 9 months ago
Quality-driven geospatial data integration
Accurate and efficient integration of geospatial data is an important problem with applications in areas such as emergency response and urban planning. Some of the key challenges ...
Craig A. Knoblock, José Luis Ambite, Snehal...