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» Foundations of Aggregation Constraints
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ICDT
2007
ACM
133views Database» more  ICDT 2007»
14 years 2 months ago
XML Schema Mappings in the Presence of Key Constraints and Value Dependencies
Abstract. Schema mappings play a central role in both data integration and data exchange, and are understood as high-level specifications describing the relationships between data...
Tadeusz Pankowski, Jolanta Cybulka, Adam Meissner
AAAI
2007
13 years 10 months ago
An Experimental Comparison of Constraint Logic Programming and Answer Set Programming
Answer Set Programming (ASP) and Constraint Logic Programming over finite domains (CLP(FD)) are two declarative programming paradigms that have been extensively used to encode ap...
Agostino Dovier, Andrea Formisano, Enrico Pontelli
CDC
2008
IEEE
167views Control Systems» more  CDC 2008»
13 years 10 months ago
Convex formulations of aggregate network air traffic flow optimization problems
The problem of regulating air traffic in the en route airspace of the National Airspace System is studied using an Eulerian network model to describe air traffic flow. The evolutio...
Daniel B. Work, Alexandre M. Bayen
IJAHUC
2006
128views more  IJAHUC 2006»
13 years 8 months ago
Avoid 'void' in geographic routing for data aggregation in sensor networks
: Wireless sensor networks have attracted great attention in research and industrial development due to its fast-growing application potentials. New techniques must be developed fo...
Shigang Chen, Guangbin Fan, Jun-Hong Cui
KI
1999
Springer
14 years 11 days ago
On the Translation of Qualitative Spatial Reasoning Problems into Modal Logics
Among the formalisms for qualitative spatial reasoning, the Region Connection Calculus and its variant, the constraint algebra RCC8, have received particular attention recently. A...
Werner Nutt