3836 search results - page 74 / 768 » Semantics of Database Transformations |
LPNMR
2009
Springer
14 years 4 months ago
2009
Springer
Abstract. We study the complexity of consistency checking and query answering on incomplete databases for languages ranging from non-recursive Datalog to disjunctive Datalog with n...
ICSNW
2004
Springer
14 years 3 months ago
2004
Springer
Knowledge Sifter is a scaleable agent-based system that supports access to heterogeneous information sources such as the Web, open-source repositories, XML-databases and the emergi...
EJC
2003
13 years 11 months ago
2003
The goal of this paper is to build a bridge from a certain intuitive conception of natural language communication, called the SLIM theory of language, to a technical approach, cal...
SRDS
1995
IEEE
14 years 1 months ago
1995
IEEE
Advances in computer and telecommunication technologies have made mobile computing a reality. However, greater mobility implies a more tenuous network connection and a higher rate...
SEBD
2007
13 years 11 months ago
2007
Preference queries aim to retrieve from large databases those objects that better match user’s requirements. Approaches proposed so far in the DB field for specifying preference...