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» Ordering Constraints over Feature Trees
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IDEAS
2005
IEEE
137views Database» more  IDEAS 2005»
13 years 11 months ago
Order-Sensitive XML Query Processing over Relational Sources: An Algebraic Approach
The XML data is order-sensitive. The order problem, that is how ordered XML documents and order-sensitive queries over it can be efficiently supported when mapped into the unorde...
Ling Wang, Song Wang, Brian Murphy, Elke A. Runden...
SEFM
2009
IEEE
14 years 6 hour ago
Right Propositional Neighborhood Logic over Natural Numbers with Integer Constraints for Interval Lengths
Interval temporal logics are based on interval structures over linearly (or partially) ordered domains, where time intervals, rather than time instants, are the primitive ontologi...
Davide Bresolin, Valentin Goranko, Angelo Montanar...
SEMWEB
2010
Springer
13 years 3 months ago
Using Reformulation Trees to Optimize Queries over Distributed Heterogeneous Sources
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
Yingjie Li, Jeff Heflin
ACL
1994
13 years 6 months ago
Multiset-Valued Linear Index Grammars: Imposing Dominance Constraints on Derivations
This paper defines multiset-valued linear index grammar and unordered vector grammar with dominance links. The former models certain uses of multisetvalued feature structures in u...
Owen Rambow
CORR
2010
Springer
117views Education» more  CORR 2010»
13 years 5 months ago
Evaluating and Improving Modern Variable and Revision Ordering Strategies in CSPs
A key factor that can dramatically reduce the search space during constraint solving is the criterion under which the variable to be instantiated next is selected. For this purpos...
Thanasis Balafoutis, Kostas Stergiou