848 search results - page 49 / 170 » Optimization of Sequence Queries in Database Systems |
ICDT
2011
ACM
13 years 11 days ago
2011
ACM
Distributed data management systems consist of peers that store, exchange and process data in order to collaboratively achieve a common goal, such as evaluate some query. We study...
BTW
2007
Springer
14 years 28 days ago
2007
Springer
Abstract: Content based multimedia retrieval is an important topic in database systems. An emerging and challenging topic in this area is the content based search in video data. A ...
SIGMOD
2011
ACM
12 years 11 months ago
2011
ACM
In this paper we consider the problem of answering queries using views, which is important for data integration, query optimization, and data warehouses. We consider its simplest ...
ICDE
2000
IEEE
14 years 10 months ago
2000
IEEE
Execution plans produced by traditional query optimizers for data integration queries may yield poor performance for several reasons. The cost estimates may be inaccurate, the mem...
SIGMOD
2008
ACM
13 years 8 months ago
2008
ACM
We consider the problem of evaluating multiple overlapping queries defined on data streams, where each query is a conjunction of multiple filters and each filter may be shared acr...