254 search results - page 30 / 51 » Perspectives on ontology-based querying |
FOCS
2008
IEEE
14 years 2 months ago
2008
IEEE
Relational joins are at the core of relational algebra, which in turn is the core of the standard database query language SQL. As their evaluation is expensive and very often domi...
SEMWEB
2004
Springer
14 years 28 days ago
2004
Springer
The Semantic Web is bound to be untrustworthy and inconsistent. In this paper, we present an initial approach for obtaining useful information in such an environment. In particular...
AIR
2006
13 years 7 months ago
2006
Abstract Storing and retrieving time-related information are important, or even critical, tasks on many areas of Computer Science (CS) and in particular for Artificial Intelligence...
ICDE
2002
IEEE
14 years 9 months ago
2002
IEEE
Obtaining fast and good quality approximations to data distributions is a problem of central interest to database management. A variety of popular database applications including,...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
We address the issue of measuring storage, or query load distribution fairness in peer-to-peer data management systems. Existing metrics may look promising from the point of view ...