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» On the consistency of cardinal direction constraints
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112
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ICDT
2005
ACM
128views Database» more  ICDT 2005»
15 years 7 months ago
First-Order Query Rewriting for Inconsistent Databases
We consider the problem of retrieving consistent answers over databases that might be inconsistent with respect to some given integrity constraints. In particular, we concentrate o...
Ariel Fuxman, Renée J. Miller
68
Voted
FLAIRS
2001
15 years 3 months ago
Nonbinary Constraint Satisfaction: From the Dual to the Primal
Nonbinaryconstraints haverecently beenstudiedquite extensivelysincethey representreal life problemsverynaturally. Specifically,extensionsto binaryarc consistencyinto generalised a...
Sivakumar Nagarajan, Scott D. Goodwin, Abdul Satta...
CPAIOR
2007
Springer
15 years 8 months ago
Necessary Condition for Path Partitioning Constraints
Given a directed graph G, the K node-disjoint paths problem consists in finding a partition of G into K node-disjoint paths, such that each path ends up in a given subset of nodes...
Nicolas Beldiceanu, Xavier Lorca
ER
2007
Springer
108views Database» more  ER 2007»
15 years 8 months ago
Reasoning over Extended ER Models
Abstract. We investigate the computational complexity of reasoning over various fragments of the Extended Entity-Relationship (EER) language, which includes a number of constructs:...
Alessandro Artale, Diego Calvanese, Roman Kontchak...
93
Voted
INFOCOM
2007
IEEE
15 years 8 months ago
Target-Oriented Scheduling in Directional Sensor Networks
— Unlike convectional omni-directional sensors that always have an omni-angle of sensing range, directional sensors may have a limited angle of sensing range due to technical con...
Yanli Cai, Wei Lou, Minglu Li, X.-Y. Li