304 search results - page 43 / 61 » Selectivity Estimation of Window Queries |
VLDB
1994
ACM
13 years 11 months ago
1994
ACM
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
To retrieve similar database videos to a query clip, each video is typically represented by a sequence of highdimensional feature vectors. Given a query video containing m feature...
BTW
2007
Springer
14 years 1 months ago
2007
Springer
Abstract: Peer data management systems (PDMS) are a highly dynamic, decentralized infrastructure for large-scale data integration. They consist of a dynamic set of autonomous peers...
P2P
2006
IEEE
14 years 1 months ago
2006
IEEE
Large-scale distributed data management with P2P systems requires the existence of similarity operators for queries as we cannot assume that all users will agree on exactly the sa...
TCSV
2008
13 years 7 months ago
2008
Conventional subspace learning or recent feature extraction methods consider globality as the key criterion to design discriminative algorithms for image classification. We demonst...