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» Complex Preferences for Answer Set Optimization
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SIGMOD
2007
ACM
146views Database» more  SIGMOD 2007»
14 years 8 months ago
Distributed query evaluation with performance guarantees
Partial evaluation has recently proven an effective technique for evaluating Boolean XPath queries over a fragmented tree that is distributed over a number of sites. What left ope...
Gao Cong, Wenfei Fan, Anastasios Kementsietsidis
ICDE
2003
IEEE
102views Database» more  ICDE 2003»
14 years 9 months ago
Schema Mediation in Peer Data Management Systems
Intuitively, data management and data integration tools should be well-suited for exchanging information in a semantically meaningful way. Unfortunately, they suffer from two sign...
Alon Y. Halevy, Zachary G. Ives, Dan Suciu, Igor T...
SIGMOD
2001
ACM
136views Database» more  SIGMOD 2001»
14 years 8 months ago
Selectivity Estimation using Probabilistic Models
Estimating the result size of complex queries that involve selection on multiple attributes and the join of several relations is a difficult but fundamental task in database query...
Lise Getoor, Benjamin Taskar, Daphne Koller
JAIR
2008
102views more  JAIR 2008»
13 years 7 months ago
An Ordinal Bargaining Solution with Fixed-Point Property
Shapley's impossibility result indicates that the two-person bargaining problem has no non-trivial ordinal solution with the traditional game-theoretic bargaining model. Alth...
Dongmo Zhang, Yan Zhang
VLDB
2005
ACM
162views Database» more  VLDB 2005»
14 years 1 months ago
XQuery Implementation in a Relational Database System
Many enterprise applications prefer to store XML data as a rich data type, i.e. a sequence of bytes, in a relational database system to avoid the complexity of decomposing the dat...
Shankar Pal, Istvan Cseri, Oliver Seeliger, Michae...