412 search results - page 10 / 83 » Aggregate queries over ontologies |
DLOG
2009
13 years 4 months ago
2009
RR
2007
Springer
14 years 1 months ago
2007
Springer
ESWS
2006
Springer
13 years 10 months ago
2006
Springer
The requirements of specific applications and services are often over estimated when ontologies are designed and built. This sometimes results in many ontologies being too large fo...
ICSNW
2004
Springer
14 years 10 days 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...
ICEBE
2005
IEEE
14 years 17 days ago
2005
IEEE
Over a traditional Database Management System (DBMS), the answer to an aggregate query is usually much smaller than the answer to a similar nonaggregate query. Therefore, we call ...