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» Semantics and Complexity of SPARQL
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SEMCO
2007
IEEE
15 years 11 months ago
Thematic Role Based Generation of UML Models from Real World Requirements
Model-driven development depends on good initial models. Creating these models by hand is a challenging task, because of complex specification documents and change requests. We p...
Tom Gelhausen, Walter F. Tichy
ESWS
2005
Springer
15 years 10 months ago
Temporal RDF
The Resource Description Framework (RDF) is a metadata model and language recommended by the W3C. This paper presents a framework to incorporate temporal reasoning into RDF, yieldi...
Claudio Gutiérrez, Carlos A. Hurtado, Aleja...
ICDT
2003
ACM
125views Database» more  ICDT 2003»
15 years 10 months ago
XPath Containment in the Presence of Disjunction, DTDs, and Variables
XPath is a simple language for navigating an XML tree and returning a set of answer nodes. The focus in this paper is on the complexity of the containment problem for various fragm...
Frank Neven, Thomas Schwentick
TACAS
1997
Springer
105views Algorithms» more  TACAS 1997»
15 years 9 months ago
Graphs in METAFrame: The Unifying Power of Polymorphism
We present a highly polymorphic tool for the construction, synthesis, structuring, manipulation, investigation, and (symbolic) execution of graphs. The exibility of this tool, whic...
Michael von der Beeck, Volker Braun, Andreas Cla&s...
RR
2010
Springer
15 years 3 months ago
Usability of a Visual Language for DL Concept Descriptions
The development and use of ontologies may require users with no training in formal logic to handle complex concept descriptions. To aid such users, we propose a new visualization f...
Fernando Náufel do Amaral