166 search results - page 2 / 34 » A Theory of Signs for Database Semantics |
PODS
1993
ACM
13 years 9 months ago
1993
ACM
ICDE
2008
IEEE
14 years 6 months ago
2008
IEEE
A fundamental problem in information integration is that of designing the relationships, called schema mappings, between two schemas. The specification of a semantically correct sc...
WWW
2005
ACM
14 years 6 months ago
2005
ACM
Being able to determine the provenience of statements is a fundamental step in any SW trust modeling. We propose a methodology that allows signing of small groups of RDF statement...
DBPL
2003
Springer
13 years 10 months ago
2003
Springer
Over the last fifteen years, database management systems (DBMSs) have been enhanced by the addition of rule-based programming to obtain active DBMSs. One of the greatest challeng...
CORR
2011
Springer
12 years 8 months ago
2011
Springer
In this paper we will present the two basic operations for database schemas used in database mapping systems (separation and Data Federation), and we will explain why the functoria...