4234 search results - page 44 / 847 » OLAP on sequence data |
ICDE
2007
IEEE
14 years 2 months ago
2007
IEEE
Moving objects databases (MOD) have been receiving increasing attention from the database community in recent years, mainly due to the wide variety of applications that technology...
EDBT
2000
ACM
13 years 11 months ago
2000
ACM
OLAP applications use precomputation of aggregate data to improve query response time. While this problem has been well-studied in the recent database literature, to our knowledge ...
ICDT
2009
ACM
14 years 8 months ago
2009
ACM
Graph-theoretic aggregation problems have been considered both in OLAP (grid graph) and XML (tree). This paper gives new results for MIN aggregation in a tree, where we want the M...
DAWAK
2009
Springer
13 years 5 months ago
2009
Springer
Data Warehouses (DW) manage crucial enterprise information used for the decision making process which has to be protected from unauthorized accesses. However, security constraints ...
DMDW
2001
13 years 9 months ago
2001
OLAP defines a set of data warehousing query tools characterized by providing a multidimensional view of data. Information can be shown at different aggregation levels (often call...