4397 search results - page 434 / 880 » Relational Algebra Operations |
164
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DIWEB
2004
15 years 8 months ago
2004
Relational database systems are increasingly used to manage XML documents, especially for data-centric XML. In this paper we present a new approach to efficiently manage document-c...
139
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AAAI
1994
15 years 8 months ago
1994
A description classifier organizes concepts and relations into a taxonomy based on the results of subsumption computations applied to pairs of relation definitions. Until now, des...
196
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CADE
2010
Springer
15 years 8 months ago
2010
Springer
Coalgebraic description logics offer a common semantic umbrella for extensions of description logics with reasoning principles outside relational semantics, e.g. quantitative uncer...
187
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AI
2010
Springer
15 years 7 months ago
2010
Springer
In this paper, a fairly general framework for reasoning from inconsistent propositional bases is defined. Variable forgetting is used as a basic operation for weakening pieces of ...
179
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ENGL
2008
15 years 7 months ago
2008
Abstract--We are developing an autonomous mobile robotic system to emulate six degree of freedom relative spacecraft motion during proximity operations. A mobile omni-directional b...