412 search results - page 76 / 83 » Aggregate queries over ontologies |
HICSS
2003
IEEE
14 years 1 months ago
2003
IEEE
Many organizations often underutilize their already constructed data warehouses. In this paper, we suggest a novel way of acquiring more information from corporate data warehouses...
SIGMOD
2005
ACM
14 years 7 months ago
2005
ACM
Complex queries over high speed data streams often need to rely on approximations to keep up with their input. The research community has developed a rich literature on approximat...
ADBIS
2009
Springer
14 years 2 months ago
2009
Springer
Continuous queries applied over nonterminating data streams usually specify windows in order to obtain an evolving –yet restricted– set of tuples and thus provide timely result...
JCDL
2009
ACM
14 years 2 months ago
2009
ACM
A lot of future-related information is available in news articles or Web pages. This information can however differ to large extent and may fluctuate over time. It is therefore di...
EUROPAR
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. We present PerfMiner, a system for the transparent collection, storage and presentation of thread-level hardware performance data across an entire cluster. Every sub-proc...