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AAAI
2006
15 years 1 months ago
Characterizing Data Complexity for Conjunctive Query Answering in Expressive Description Logics
Description Logics (DLs) are the formal foundations of the standard web ontology languages OWL-DL and OWL-Lite. In the Semantic Web and other domains, ontologies are increasingly ...
Magdalena Ortiz, Diego Calvanese, Thomas Eiter
ECIS
2004
15 years 1 months ago
Adverse Events in Hospitals: The Contribution of Poor Information Systems
Adverse events in hospitals, events in which harm results to a person receiving health care, are well documented (Wilson 1995, Hepler 2001). However, while factors such as lack of...
Reeva M. Lederman
DGO
2003
133views Education» more  DGO 2003»
15 years 1 months ago
Accessing Diverse Geo-Referenced Data Sources with the SAND Spatial DBMS
The Internet has become the most frequently accessed medium for obtaining various types of data. In particular, government agencies, academic institutions, and private enterprises...
Jagan Sankaranarayanan, Egemen Tanin, Hanan Samet,...
SCS
2004
15 years 1 months ago
The HEAT/ACT Preliminary Safety Case: A case study in the use of Goal Structuring Notation
The HEAT/ACT project consists of replacing the conventional mechanical flight control system of a helicopter with a fly-by-wire system. With such a project, the safety concerns ar...
Paul Chinneck, David Pumfrey, John McDermid
IJCAI
2003
15 years 1 months ago
Spaces of Theories with Ideal Refinement Operators
Refinement operators for theories avoid the problems related to the myopia of many relational learning algorithms based on the operators that refine single clauses. However, the n...
Nicola Fanizzi, Stefano Ferilli, Nicola Di Mauro, ...