805 search results - page 45 / 161 » On the Role of Integrity Constraints in Data Integration |
CASCON
2004
14 years 11 months ago
2004
For several reasons a database may not satisfy certain integrity constraints (ICs), for example, when it is the result of integrating several independent data sources. However, mo...
AMAI
2007
Springer
14 years 9 months ago
2007
Springer
Abstract In many scenarios, a database instance violates a given set of integrity constraints. In such cases, it is often required to repair the database, that is, to restore its c...
ACSAC
2006
IEEE
15 years 3 months ago
2006
IEEE
Access control and integrity constraints are well known approaches to ensure data integrity in commercial database systems. However, due to operational mistakes, malicious intent ...
ICSE
2008
IEEE-ACM
2008
IEEE-ACM
Developing a security protocol for a distributed decision support system in a healthcare environment
15 years 10 months ago
In this paper, we describe the unique security issues involved in healthcare domains. These have been addressed to the needs of the HealthAgents project. In the proposed approach,...
CAEPIA
2003
Springer
15 years 2 months ago
2003
Springer
In decision support systems for Intensive Care Units (ICU), the data management subsystem plays an essential role since the data have a heterogeneous origin. The temporal dimension...