902 search results - page 28 / 181 » Efficient and Extensible Algorithms for Multi Query Optimiza... |
TMM
2010
13 years 3 months ago
2010
Abstract--Automatic video annotation is a challenging yet important problem for content-based video indexing and retrieval. In most existing works, annotation is formulated as a mu...
SIGMOD
2001
ACM
14 years 8 months ago
2001
ACM
The ability to approximately answer aggregation queries accurately and efficiently is of great benefit for decision support and data mining tools. In contrast to previous sampling...
JUCS
2008
13 years 8 months ago
2008
: Wireless Sensor Networks (WSN) allow, thanks to the use of small wireless devices known as sensor nodes, the monitorization of wide and remote areas with precision and liveness u...
EXPDB
2006
ACM
14 years 2 months ago
2006
ACM
In data warehousing applications, the ability to efficiently delete large chunks of data from a table is very important. This feature is also known as Rollout. Rollout is generall...
PVLDB
2010
13 years 3 months ago
2010
Top-k spatial preference queries return a ranked set of the k best data objects based on the scores of feature objects in their spatial neighborhood. Despite the wide range of loc...