6974 search results - page 189 / 1395 » Querying Semi-Structured Data |
JAIR
2012
11 years 10 months ago
2012
To achieve scalability of query answering, the developers of Semantic Web applications are often forced to use incomplete OWL 2 reasoners, which fail to derive all answers for at ...
VLDB
1994
ACM
14 years 9 days ago
1994
ACM
We have built a multidatabase system to support a financial application that stores historical data used by traders to identify trends in the market. The application has an update...
DEBS
2011
ACM
2011
ACM
DejaVu: a complex event processing system for pattern matching over live and historical data streams
12 years 11 months ago
This short paper provides an overview of the DejaVu complex event processing (CEP) system, with an emphasis on its novel architecture and query optimization techniques for correla...
CIKM
2000
Springer
14 years 17 days ago
2000
Springer
The complexity of deploying high-performance spatial structures in transactional DBMS environments has motivated researchers to experiment with the idea of reusing the effort inve...
SIGMOD
2005
ACM
14 years 8 months ago
2005
ACM
Given a set of objects P and a query point q, a k nearest neighbor (k-NN) query retrieves the k objects in P that lie closest to q. Even though the problem is well-studied for sta...