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» Expressiveness and complexity of graph logic
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DSN
2002
IEEE
14 years 3 months ago
Model Checking Performability Properties
Model checking has been introduced as an automated technique to verify whether functional properties, expressed in a formal logic like computational tree logic (CTL), do hold in a...
Boudewijn R. Haverkort, Lucia Cloth, Holger Herman...
PODS
2009
ACM
122views Database» more  PODS 2009»
14 years 11 months ago
Satisfiability of downward XPath with data equality tests
In this work we investigate the satisfiability problem for the logic XPath( , , =), that includes all downward axes as well as equality and inequality tests. We address this probl...
Diego Figueira
ER
2007
Springer
108views Database» more  ER 2007»
14 years 5 months ago
Reasoning over Extended ER Models
Abstract. We investigate the computational complexity of reasoning over various fragments of the Extended Entity-Relationship (EER) language, which includes a number of constructs:...
Alessandro Artale, Diego Calvanese, Roman Kontchak...
BPM
2008
Springer
125views Business» more  BPM 2008»
14 years 28 days ago
Checking Compliance of Execution Traces to Business Rules
Complex and flexible business processes are critical not only because they are difficult to handle, but also because they often tend to loose their intelligibility. Verifying compl...
Federico Chesani, Paola Mello, Marco Montali, Fabr...
DMDW
2000
161views Management» more  DMDW 2000»
14 years 9 days ago
View materialization for nested GPSJ queries
View materialization is a central issue in logical design of data warehouses since it is one of the most powerful techniques to improve the response to the workload. Most approach...
Matteo Golfarelli, Stefano Rizzi