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ICDE
1997
IEEE
176views Database» more  ICDE 1997»
16 years 8 months ago
ODB-QOPTIMIZER: A Tool for Semantic Query Optimization in OODB
2. ODB-QOPTIMIZER : the tool ODB-QOPTIMIZERis a ODMG 93 compliant tool for the schema validation and semantic query optimization. The approach is based on two fundamental ingredien...
Sonia Bergamaschi, Domenico Beneventano, Claudio S...
154
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KES
2004
Springer
16 years 4 days ago
Mining Positive and Negative Fuzzy Association Rules
While traditional algorithms concern positive associations between binary or quantitative attributes of databases, this paper focuses on mining both positive and negative fuzzy ass...
Peng Yan, Guoqing Chen, Chris Cornelis, Martine De...
VLDB
1989
ACM
88views Database» more  VLDB 1989»
15 years 10 months ago
On the design and implementation of information systems from deductive conceptual models
Deductive conceptualmodels(DCMs) aim at providing a complete specification of information systems,expressing only its logic component.It hasbeenshownthatDCMs have some advantagesw...
Antoni Olivé
VLDB
1990
ACM
166views Database» more  VLDB 1990»
15 years 10 months ago
The Tree Quorum Protocol: An Efficient Approach for Managing Replicated Data
In this paper, we present an efficient algorithm for managing replicated data. We impose a logical tree structure on the set of copies of an object. In a failurefree environment t...
Divyakant Agrawal, Amr El Abbadi
NMR
2004
Springer
16 years 4 days ago
A SAT-based polynomial space algorithm for answer set programming
The relation between answer set programming (ASP) and propositional satisfiability (SAT) is at the center of many research papers, partly because of the tremendous performance bo...
Enrico Giunchiglia, Yuliya Lierler, Marco Maratea