159 search results - page 24 / 32 » Performing grouping and aggregate functions in XML queries |
MOBISYS
2008
ACM
14 years 7 months ago
2008
ACM
Recent years have witnessed the impacts of distributed content sharing (Wikipedia, Blogger), social networks (Facebook, MySpace), sensor networks, and pervasive computing. We beli...
KDD
2004
ACM
14 years 7 months ago
2004
ACM
Data cube pre-computation is an important concept for supporting OLAP(Online Analytical Processing) and has been studied extensively. It is often not feasible to compute a complet...
DAWAK
2000
Springer
13 years 11 months ago
2000
Springer
In the context of multidimensional databases implemented on relational DBMSs through star schemes, the most effective technique to enhance performances consists of materializing re...
P2P
2005
IEEE
14 years 29 days ago
2005
IEEE
Peer-to-peer file-sharing systems have hundreds of thousands of users sharing petabytes of data, however, their search functionality is limited. In general, query results contain...
SSDBM
2000
IEEE
13 years 11 months ago
2000
IEEE
In implementations of non-standard database systems, large objects are often embedded within an aggregate of different types, i.e. a tuple. For a given size and access probabilit...