565 search results - page 30 / 113 » Multiple Range Query Optimization in Spatial Databases |
ICDE
2012
IEEE
13 years 2 days ago
2012
IEEE
— We consider how to support a large number of users over a wide-area network whose interests are characterized by range top-k continuous queries. Given an object update, we need...
155
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ICDE
2006
IEEE
15 years 11 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...
155
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SIGMOD
2005
ACM
15 years 9 months ago
2005
ACM
Relational DBMS typically execute concurrent queries independently by invoking a set of operator instances for each query. To exploit common data retrievals and computation in con...
MDM
2005
Springer
15 years 3 months ago
2005
Springer
In this paper we propose a query-driven approach for tuning the time/energy trade-off in sensor networks with mobile sensors. The tuning factors include re-positioning of mobile s...
VLDB
1993
ACM
15 years 1 months ago
1993
ACM
In this paper we propose a new declustering method which is particularly suitable for image and cartographic databases used for visualization. Our declustering method is based on ...