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SEMWEB
2007
Springer
14 years 21 days ago
Discovering Simple Mappings Between Relational Database Schemas and Ontologies
Ontologies proliferate with the growth of the Semantic Web. However, most of data on the Web are still stored in relational databases. Therefore, it is important to establish inter...
Wei Hu, Yuzhong Qu
ESWS
2008
Springer
13 years 8 months ago
Mapping Validation by Probabilistic Reasoning
In the semantic web environment, where several independent ontologies are used in order to describe knowledge and data, ontologies have to be aligned by defining mappings among the...
Silvana Castano, Alfio Ferrara, Davide Lorusso, To...
KCAP
2003
ACM
13 years 12 months ago
Modularisation of domain ontologies implemented in description logics and related formalisms including OWL
Modularity is a key requirement for large ontologies in order to achieve re-use, maintainability, and evolution. Mechanisms for ‘normalisation’ to achieve analogous aims are s...
Alan L. Rector
KES
2004
Springer
13 years 12 months ago
Managing Ontology Evolution Via Relational Constraints
Abstract. Ontology-based modelling is becoming increasingly important in the design of complex knowledge management applications. However, many problems related to large-scale onto...
Paolo Ceravolo, Angelo Corallo, Gianluca Elia, Ant...
ICDE
2008
IEEE
161views Database» more  ICDE 2008»
14 years 1 months ago
On the semantics and evaluation of top-k queries in probabilistic databases
We formulate three intuitive semantic properties for topk queries in probabilistic databases, and propose GlobalTopk query semantics which satisfies all of them. We provide a dyn...
Xi Zhang, Jan Chomicki