792 search results - page 21 / 159 » Computing Iceberg Queries Efficiently |
SIGMOD
2001
ACM
14 years 10 months ago
2001
ACM
We study the problem of generating e cient, equivalent rewritings using views to compute the answer to a query. We take the closed-world assumption, in which views are materialize...
ICMCS
2005
IEEE
14 years 3 months ago
2005
IEEE
Due to the enormous increase in the stored digital contents, search and retrieval functionalities are necessary in multimedia systems. Though processor speed for standard PCs (Per...
JUCS
2007
13 years 10 months ago
2007
: Indexing video content is one of the most important problems in video databases. In this paper we present linear time and space algorithms for handling video metadata that repres...
ICDE
2007
IEEE
14 years 11 months ago
2007
IEEE
In a current project, customers are attracted by a video streaming application. A video camera records people passing by, and a monitor shows an alienated version of the setting a...
EDBT
2009
ACM
14 years 4 months ago
2009
ACM
There has been an explosion of hyperlinked data in many domains, e.g., the biological Web. Expressive query languages and effective ranking techniques are required to convert this...