6905 search results - page 42 / 1381 » Querying Multidimensional Databases |
ADBIS
2010
Springer
13 years 11 months ago
2010
Springer
Cardinal directions have turned out to be very important qualitative spatial relations due to their numerous applications in spatial wayfinding, GIS, qualitative spatial reasoning ...
VLDB
2004
ACM
14 years 3 months ago
2004
ACM
Given a point q, a reverse k nearest neighbor (RkNN) query retrieves all the data points that have q as one of their k nearest neighbors. Existing methods for processing such quer...
DBISP2P
2004
Springer
14 years 3 months ago
2004
Springer
Today, there is an increasing demand to share data with complex data types (e.g., multi-dimensional) over large numbers of data sources. One of the key challenges is sharing these ...
ICDE
2007
IEEE
14 years 11 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...
SSD
2005
Springer
14 years 3 months ago
2005
Springer
Abstract. Query optimization is an important functionality of modern database systems and often based on estimating the selectivity of queries before actually executing them. Well-...