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DAWAK
2000
Springer
13 years 11 months ago
Applying Vertical Fragmentation Techniques in Logical Design of Multidimensional Databases
In the context of multidimensional databases implemented on relational DBMSs through star schemes, the most effective technique to enhance performances consists of materializing re...
Matteo Golfarelli, Dario Maio, Stefano Rizzi
UAI
2003
13 years 8 months ago
CLP(BN): Constraint Logic Programming for Probabilistic Knowledge
Abstract. In Datalog, missing values are represented by Skolem constants. More generally, in logic programming missing values, or existentially quantified variables, are represent...
Vítor Santos Costa, David Page, Maleeha Qaz...
KDD
2008
ACM
146views Data Mining» more  KDD 2008»
14 years 7 months ago
Constraint programming for itemset mining
The relationship between constraint-based mining and constraint programming is explored by showing how the typical constraints used in pattern mining can be formulated for use in ...
Luc De Raedt, Tias Guns, Siegfried Nijssen
DKE
2010
167views more  DKE 2010»
13 years 7 months ago
The consistency extractor system: Answer set programs for consistent query answering in databases
We describe the Consistency Extractor System (ConsEx) that computes consistent answers to Datalog queries with negation posed to relational databases that may be inconsistent with...
Mónica Caniupán Marileo, Leopoldo E....
ISMIS
1994
Springer
13 years 11 months ago
Reasoning About the Safety of Information: From Logical Formalization to Operational Definition
We assume that safety of information stored in a database depends on the reliability of the agents who have performed the insertions in the database. We present a logic S to repres...
Laurence Cholvy, Robert Demolombe, Andrew J. I. Jo...