550 search results - page 99 / 110 » A Logical Approach to Multidimensional Databases |
SIGMOD
2001
ACM
14 years 7 months ago
2001
ACM
We study the problem of generating e cient, equivalent rewritings using views to compute the answer to a query. We take the closed-world assumption, in which views are materialize...
SAC
2010
ACM
14 years 2 months ago
2010
ACM
The aim of this short paper is to present a general method of using background knowledge to impose constraints in conceptual clustering of object-attribute relational data. The pr...
SAC
2010
ACM
14 years 2 months ago
2010
ACM
Extensive research activities are recently directed towards the Semantic Web as a future form of the Web. Consequently, Web search as the key technology of the Web is evolving tow...
DATESO
2007
13 years 9 months ago
2007
We address a problem of updating XML documents having their XML schema described by a Document Type Definition (DTD) without breaking their validity. We present a way how to expre...
CCS
2007
ACM
14 years 1 months ago
2007
ACM
In recent years, web applications have become tremendously popular, and nowadays they are routinely used in security-critical environments, such as medical, financial, and milita...