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WWW
2004
ACM
14 years 10 months ago
A proposal for an owl rules language
Although the OWL Web Ontology Language adds considerable expressive power to the Semantic Web it does have expressive limitations, particularly with respect to what can be said ab...
Ian Horrocks, Peter F. Patel-Schneider
SEMWEB
2009
Springer
14 years 4 months ago
Context and Domain Knowledge Enhanced Entity Spotting in Informal Text
This paper explores the application of restricted relationship graphs (RDF) and statistical NLP techniques to improve named entity annotation in challenging Informal English domain...
Daniel Gruhl, Meenakshi Nagarajan, Jan Pieper, Chr...
GEOS
2007
Springer
14 years 4 months ago
Supporting Complex Thematic, Spatial and Temporal Queries over Semantic Web Data
Spatial and temporal data are critical components in many applications. This is especially true in analytical domains such as national security and criminal investigation. Often, t...
Matthew Perry, Amit P. Sheth, Farshad Hakimpour, P...
ICLP
2007
Springer
14 years 4 months ago
DLVHEX-SPARQL: A SPARQL Compliant Query Engine Based on DLVHEX
This paper describes the dlvhex SPARQL plugin, a query processor for the upcoming Semantic Web query language standard by W3C. We report on the implementation of this languages usi...
Axel Polleres, Roman Schindlauer
POLICY
2007
Springer
14 years 4 months ago
Specifying and Enforcing High-Level Semantic Obligation Policies
Obligation Policies specify management actions that must be performed when a particular kind of event occurs and certain conditions are satisfied. Large scale distributed systems...
Zhen Liu, Anand Ranganathan, Anton Riabov