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DKE
2006
123views more  DKE 2006»
15 years 6 months ago
Cost models for distance joins queries using R-trees
The K-Closest-Pairs Query (K-CPQ), a type of distance join in spatial databases, discovers the K pairs of objects formed from two different datasets with the K smallest distances....
Antonio Corral, Yannis Manolopoulos, Yannis Theodo...
201
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GIS
2006
ACM
15 years 6 months ago
Dynamic simplification and visualization of large maps
In this paper, we present an algorithm that performs simplification of large geographical maps through a novel use of graphics hardware. Given a map as a collection of non-interse...
Nabil H. Mustafa, Shankar Krishnan, Gokul Varadhan...
CG
2007
Springer
15 years 6 months ago
A fast all nearest neighbor algorithm for applications involving large point-clouds
Algorithms that use point-cloud models make heavy use of the neighborhoods of the points. These neighborhoods are used to compute the surface normals for each point, mollificatio...
Jagan Sankaranarayanan, Hanan Samet, Amitabh Varsh...
TKDE
2008
105views more  TKDE 2008»
15 years 6 months ago
Evolutionary Optimization of File Assignment for a Large-Scale Video-on-Demand System
We present a genetic algorithm for tackling a file assignment problem for a large-scale video-on-demand system. The file assignment problem is to find the optimal replication and a...
Jun Guo, Yi Wang, Kit-Sang Tang, Sammy Chan, Eric ...
TMI
2008
135views more  TMI 2008»
15 years 6 months ago
A Factorization Approach for Cone-Beam Reconstruction on a Circular Short-Scan
In this paper, we introduce a new algorithm for 3-D image reconstruction from cone-beam (CB) projections acquired along a partial circular scan. Our algorithm is based on a novel, ...
Frank Dennerlein, Frédéric Noo, H. S...