21 search results - page 3 / 5 » Temporal Aggregation Using a Multidimensional Index |
DKE
1998
13 years 7 months ago
1998
Disk I/O is a major bottleneck for query processing in database applications. This bottleneck is especially a problem for temporal databases because of their large size. Reduction...
SIGMOD
1997
ACM
13 years 12 months ago
1997
ACM
: The read-mostly environment of data warehousing makes it possible to use more complex indexes to speed up queries than in situations where concurrent updatesare present. The curr...
PSYCHNOLOGY
2008
13 years 7 months ago
2008
Visualization plays an important role in social networks analysis to explore and investigate individual and groups behaviours. Therefore, different approaches have been proposed f...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
Traditional approaches for efficiently processing historical queries, where a history is a multidimensional timeseries, employ a two step filter-and-refine scheme. In the filter s...
CVPR
2000
IEEE
14 years 9 months ago
2000
IEEE
Online photo sharing systems, such as Flickr and Picasa, provide a valuable source of human-annotated photos. Textual annotations are used not only to describe the visual content ...