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» Constraint Databases: A Survey
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SAT
2004
Springer
101views Hardware» more  SAT 2004»
15 years 11 months ago
An Algebraic Approach to the Complexity of Generalized Conjunctive Queries
Kolaitis and Vardi pointed out that constraint satisfaction and conjunctive query containment are essentially the same problem. We study the Boolean conjunctive queries under a mor...
Michael Bauland, Philippe Chapdelaine, Nadia Creig...
DASFAA
2003
IEEE
84views Database» more  DASFAA 2003»
15 years 11 months ago
Supporting Selection-Projection XQuery Processing Based on Encoding Paths
Providing an efficient way to support XML query processing has become a very important issue. A system called XQP (XQuery Processor) is proposed in this paper to meet the need. X...
Ya-Hui Chang, Cheng-Ta Lee
IDEAS
2002
IEEE
223views Database» more  IDEAS 2002»
15 years 11 months ago
Energy-Efficient Data Broadcasting in Mobile Ad-Hoc Networks
Energy saving is the most important issue in wireless mobile computing due to power constraints on mobile units. Data broadcasting is the main method of information dissemination ...
Le Gruenwald, Muhammad Javed, Meng Gu
ER
2009
Springer
316views Database» more  ER 2009»
15 years 10 months ago
XMI2USE: A Tool for Transforming XMI to USE Specifications
Abstract. The UML-based Specification Environment (USE) tool supports the syntactic analysis, type checking, consistency checking, and dynamic validation of invariants and pre-/pos...
Wuliang Sun, Eunjee Song, Paul C. Grabow, Devon M....
DEXAW
2004
IEEE
131views Database» more  DEXAW 2004»
15 years 10 months ago
Personalised E-Learning Opportunities - Call for a Pedagogical Domain Knowledge Model
A considerable amount of e-learning content is being delivered via virtual or managed learning environments. These platforms keep track of learners' activities including cont...
Alex G. Büchner, David W. Patterson