Sciweavers

221 search results - page 6 / 45
» Modular Ontologies - A Formal Investigation of Semantics and...
Sort
View
FOIS
2006
13 years 9 months ago
A Dynamic Theory of Ontology
Natural languages are easy to learn by infants, they can express any thought that any adult might ever conceive, and they accommodate the limitations of human breathing rates and s...
John F. Sowa
AAAI
2006
13 years 9 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
ECSQARU
2009
Springer
14 years 2 months ago
Non-deterministic Distance Semantics for Handling Incomplete and Inconsistent Data
Abstract. We introduce a modular framework for formalizing reasoning with incomplete and inconsistent information. This framework is composed of non-deterministic semantic structur...
Ofer Arieli, Anna Zamansky
SEMWEB
2009
Springer
14 years 2 months ago
Investigating the Semantic Gap through Query Log Analysis
Significant efforts have focused in the past years on bringing large amounts of metadata online and the success of these efforts can be seen by the impressive number of web site...
Peter Mika, Edgar Meij, Hugo Zaragoza
CADE
2007
Springer
14 years 7 months ago
Conservative Extensions in the Lightweight Description Logic EL
We bring together two recent trends in description logic (DL): lightweight DLs in which the subsumption problem is tractable and conservative extensions as a central tool for forma...
Carsten Lutz, Frank Wolter