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PSSS
2003
15 years 1 months ago
DLDB: Extending Relational Databases to Support Semantic Web Queries
Abstract: We present DLDB, a knowledge base system that extends a relational database management system with additional capabilities for DAML+OIL inference. We discuss a number of ...
Zhengxiang Pan, Jeff Heflin
FOSSACS
2008
Springer
15 years 1 months ago
A Modal Deconstruction of Access Control Logics
We present a translation from a logic of access control with a "says" operator to the classical modal logic S4. We prove that the translation is sound and complete. We al...
Deepak Garg, Martín Abadi
KI
2002
Springer
14 years 11 months ago
Formal Properties of Constraint Calculi for Qualitative Spatial Reasoning
In the previous two decades, a number of qualitative constraint calculi have been developed, which are used to represent and reason about spatial configurations. A common property...
Bernhard Nebel, Alexander Scivos
ICDE
2002
IEEE
103views Database» more  ICDE 2002»
15 years 4 months ago
Using Unity to Semi-Automatically Integrate Relational Schema
Unity is an architecture for integrating relational databases that performs three processes: metadata capture, semantic integration, and query formulation and execution. The found...
Ramon Lawrence, Ken Barker
CORR
2011
Springer
156views Education» more  CORR 2011»
14 years 6 months ago
Extensional Collapse Situations I: non-termination and unrecoverable errors
Abstract. We consider a simple model of higher order, functional computations over the booleans. Then, we enrich the model in order to encompass non-termination and unrecoverable e...
Antonio Bucciarelli