168 search results - page 12 / 34 » Incremental Distance Join Algorithms for Spatial Databases |
SIGMOD
1999
ACM
14 years 5 days ago
1999
ACM
In large data warehousing environments, it is often advantageous to provide fast, approximate answers to complex aggregate queries based on statistical summaries of the full data....
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Abstract-- Particle simulation has become an important research tool in many scientific and engineering fields. Data generated by such simulations impose great challenges to databa...
GIS
1999
ACM
14 years 4 days ago
1999
ACM
Spatial indexes, such as the PMR quadtree, are important in spatial databases for efficient execution of queries involving spatial constraints, especially when the queries involv...
PVLDB
2010
13 years 6 months ago
2010
We consider the problem of efficiently finding the top-k answers for join queries over web-accessible databases. Classical algorithms for finding top-k answers use branch-and-b...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
In this paper, we study a new type of spatial query, Nearest Surrounder (NS), which searches the nearest surrounding spatial objects around a query point. NS query can be more use...