258 search results - page 14 / 52 » Relational Correspondences for Lattices with Operators |
ER
2004
Springer
13 years 11 months ago
2004
Springer
The semantic web envisions a World Wide Web in which data is described with rich semantics and applications can pose complex queries. Ontologies, a cornerstone of the semantic web,...
PODS
2006
ACM
14 years 7 months ago
2006
ACM
We propose a novel approach to the classical view update problem. The view update problem arises from the fact that modifications to a database view may not correspond uniquely to...
CORR
2004
Springer
13 years 7 months ago
2004
Springer
In the 1970s Codd introduced the relational algebra, with operators selection, projection, union, difference and product, and showed that it is equivalent to first-order logic. In ...
PAMI
2008
13 years 7 months ago
2008
In this paper, the duality in differential form is developed between a 3D primal surface and its dual manifold formed by the surface's tangent planes, i.e., each tangent plan...
IEEEVAST
2010
13 years 2 months ago
2010
Data sets in astronomy are growing to enormous sizes. Modern astronomical surveys provide not only image data but also catalogues of millions of objects (stars, galaxies), each ob...