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» Abstract Logics as Dialgebras
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FASE
2008
Springer
15 years 8 months ago
A Logic of Graph Constraints
Abstract. Graph constraints were introduced in the area of graph transformation, in connection with the notion of (negative) application conditions, as a form to limit the applicab...
Fernando Orejas, Hartmut Ehrig, Ulrike Prange
GVD
2004
111views Database» more  GVD 2004»
15 years 8 months ago
Detecting Logical Errors in SQL Queries
Abstract. Checking the consistency of query conditions is an old problem, and there are already many proposed solutions. Since the problem is in general undecidable, there is not a...
Stefan Brass, Christian Goldberg
CAI
2006
Springer
15 years 6 months ago
A Logical Framework for Identifying and Explaining Unexpected News
The number of news reports published online is now so great that it is impossible for any person to read all of them. Not all of these reports are equally interesting. Automating ...
Emma Byrne
ENTCS
2008
140views more  ENTCS 2008»
15 years 6 months ago
Higher-Order Separation Logic in Isabelle/HOLCF
We formalize higher-order separation logic for a first-order imperative language with procedures and local variables in Isabelle/HOLCF. The assertion language is modeled in such a...
Carsten Varming, Lars Birkedal
ECAI
1998
Springer
15 years 10 months ago
Description Logics with Concrete Domains and Aggregation
Abstract. We extend different Description Logics by concrete domains (such as integers and reals) and by aggregation functions over these domains (such as min;max;count;sum), which...
Franz Baader, Ulrike Sattler