1791 search results - page 71 / 359 » Semantics and Complexity of SPARQL |
156
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AAAI
2012
13 years 6 months ago
2012
We tackle the problem of defining a well-founded semantics (WFS) for Datalog rules with existentially quantified variables in their heads and negations in their bodies. In partic...
160
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WIDM
2003
ACM
15 years 9 months ago
2003
ACM
At the present time, several shortcomings prevent the more effective use and more intense application of web information systems. Recent developments that are subsumed by the term...
124
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ECMDAFA
2007
Springer
15 years 10 months ago
2007
Springer
Due to the increased complexity of software development projects more and more systems are described by models. The sheer size makes it impractical to describe these systems by a s...
133
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FSTTCS
1998
Springer
15 years 8 months ago
1998
Springer
Abstract. Synchronous languages are well suited for the design of dependable real-time systems: they enable a very high-level specification and an extremely modular implementation ...
143
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ADBIS
2010
Springer
15 years 6 months ago
2010
Springer
This paper presents a new method for image retrieval using a graph object oriented database for processing the information extracted from the image through the segmentation process...