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» Multiple Range Query Optimization in Spatial Databases
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ICDE
2009
IEEE
165views Database» more  ICDE 2009»
15 years 11 months ago
Spatial Range Querying for Gaussian-Based Imprecise Query Objects
Abstract-- In sensor environments and moving robot applications, the position of an object is often known imprecisely because of measurement error and/or movement of the object. In...
Yoshiharu Ishikawa, Yuichi Iijima, Jeffrey Xu Yu
GIS
2005
ACM
15 years 10 months ago
Close pair queries in moving object databases
Databases of moving objects are important for air traffic control, ground traffic, and battlefield configurations. We introduce the (historical and spatial) range close-pair query...
Panfeng Zhou, Donghui Zhang, Betty Salzberg, Gene ...
PODS
2000
ACM
101views Database» more  PODS 2000»
15 years 1 months ago
(Almost) Optimal Parallel Block Access for Range Queries
Mikhail J. Atallah, Sunil Prabhakar
VLDB
2005
ACM
149views Database» more  VLDB 2005»
15 years 9 months ago
Selectivity estimators for multidimensional range queries over real attributes
Estimating the selectivity of multidimensional range queries over real valued attributes has significant applications in data exploration and database query optimization. In this p...
Dimitrios Gunopulos, George Kollios, Vassilis J. T...
ISCI
2007
105views more  ISCI 2007»
14 years 9 months ago
Cost modeling of spatial operators using non-parametric regression
In an object-relational database management system, a query optimizer requires users to provide cost models of userdefined functions. The traditional approach is analytical, that...
Songtao Jiang, Byung Suk Lee, Zhen He