27 search results - page 3 / 6 » Consistent Query Answering: Opportunities and Limitations |
DPD
2006
13 years 5 months ago
2006
A major problem of unstructured P2P systems is their heavy network traffic. This is caused mainly by high numbers of query answers, many of which are irrelevant for users. One solu...
SIGMOD
2005
ACM
14 years 5 months ago
2005
ACM
Relational DBMS typically execute concurrent queries independently by invoking a set of operator instances for each query. To exploit common data retrievals and computation in con...
CORR
2002
Springer
13 years 5 months ago
2002
Springer
We address the problem of minimal-change integrity maintenance in the context of integrity constraints in relational databases. We assume that integrity-restoration actions are li...
P2P
2003
IEEE
13 years 10 months ago
2003
IEEE
Sensor networks, that consist of potentially several thousands of nodes each with sensing (heat, sound, light, magnetism, etc.) and wireless communication capabilities, provide gr...
SEMWEB
2010
Springer
13 years 3 months ago
2010
Springer
Abstract. Policies are declarations of constraints on the behaviour of components within distributed systems, and are often used to capture norms within agent-based systems. A few ...