272 search results - page 24 / 55 » Where's the Schema |
OTM
2007
Springer
14 years 1 months ago
2007
Springer
Abstract: This paper proposes extensions to the Object-Role Modeling approach to support schema transformations that eliminate unneeded columns that may arise from standard relatio...
NLDB
2004
Springer
14 years 27 days ago
2004
Springer
Most natural language database interfaces suffer from the translation knowledge portability problem, and are vulnerable to ill-formed questions because of their deep analysis. To a...
GECCO
2003
Springer
14 years 23 days ago
2003
Springer
This paper assumes a search space of fixed-length strings, where the size of the alphabet can vary from position to position. Structural crossover is mask-based crossover, and thu...
EDBTW
2010
Springer
14 years 20 days ago
2010
Springer
We study the problem of update propagation across views in the setting where both the view and the source database are XML documents. We consider a simple class of XML views that ...
CP
2000
Springer
13 years 12 months ago
2000
Springer
Soft constraints based on semirings are a generalization of classical constraints, where tuples of variables' values in each soft constraint are uniquely associated to element...