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» A Scalable Algorithm for Answering Queries Using Views
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214
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ICDE
2003
IEEE
145views Database» more  ICDE 2003»
16 years 4 months ago
PXML: A Probabilistic Semistructured Data Model and Algebra
Despite the recent proliferation of work on semistructured data models, there has been little work to date on supporting uncertainty in these models. In this paper, we propose a m...
Edward Hung, Lise Getoor, V. S. Subrahmanian
142
Voted
JAR
2007
142views more  JAR 2007»
15 years 2 months ago
Reasoning in Description Logics by a Reduction to Disjunctive Datalog
As applications of description logics proliferate, efficient reasoning with knowledge bases containing many assertions becomes ever more important. For such cases, we developed a n...
Ullrich Hustadt, Boris Motik, Ulrike Sattler
132
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SIGMOD
2009
ACM
161views Database» more  SIGMOD 2009»
15 years 9 months ago
Dependency-aware reordering for parallelizing query optimization in multi-core CPUs
The state of the art commercial query optimizers employ cost-based optimization and exploit dynamic programming (DP) to find the optimal query execution plan (QEP) without evalua...
Wook-Shin Han, Jinsoo Lee
122
Voted
OTM
2005
Springer
15 years 8 months ago
Translating XML Web Data into Ontologies
Abstract. Translating XML data into ontologies is the problem of finding an instance of an ontology, given an XML document and a specification of the relationship between the XML...
Yuan An, John Mylopoulos
132
Voted
SGAI
2009
Springer
15 years 7 months ago
A Linguistic Truth-Valued Temporal Reasoning Formalism and Its Implementation
Temporality and uncertainty are important features of many real world systems. Solving problems in such systems requires the use of formal mechanism such as logic systems, statisti...
Zhirui Lu, Jun Liu, Juan Carlos Augusto, Hui Wang