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FQAS
2009
Springer
202views Database» more  FQAS 2009»
14 years 5 months ago
Controlled Aggregate Tree Shaped Questions over Ontologies
Abstract. Controlled languages (CLs) are ambiguity-free subsets of natural languages such as English offering a good trade-off between the formal rigor of ontology and query langua...
Camilo Thorne, Diego Calvanese
EDOC
2011
IEEE
12 years 10 months ago
UML Metamodel-based Workflow Modeling and Execution
—In this paper, we present a UML metamodel-based approach for creating and executing workflow models. The modeling language is introduced through its abstract syntax, and an eval...
Jens Brüning, Martin Gogolla
SIGMOD
2006
ACM
108views Database» more  SIGMOD 2006»
14 years 11 months ago
Query reformulation with constraints
Alin Deutsch, Lucian Popa, Val Tannen
PODS
2008
ACM
120views Database» more  PODS 2008»
14 years 11 months ago
Query evaluation with soft-key constraints
Abhay Jha, Vibhor Rastogi, Dan Suciu