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GIS
2010
ACM
14 years 12 months ago
An algorithmic framework for segmenting trajectories based on spatio-temporal criteria
In this paper we address the problem of segmenting a trajectory such that each segment is in some sense homogeneous. We formally define different spatio-temporal criteria under ...
Maike Buchin, Anne Driemel, Marc J. van Kreveld, V...
CEC
2005
IEEE
15 years 7 months ago
A simple hybrid evolutionary algorithm for finding Golomb rulers
Abstract- Finding Golomb rulers is an extremely challenging optimization problem (with many practical applications) that has been approached by a variety of search methods in recen...
Iván Dotú, Pascal Van Hentenryck
GIS
1995
ACM
15 years 5 months ago
A Window Retrieval Algorithm for Spatial Databases Using Quadtrees
An algorithm is presented to answer window queries in a quadtree-based spatial database environment by retrieving the covering blocks in the underlying spatial database. It works ...
Walid G. Aref, Hanan Samet
GECCO
2004
Springer
101views Optimization» more  GECCO 2004»
15 years 6 months ago
A Novel Multi-objective Orthogonal Simulated Annealing Algorithm for Solving Multi-objective Optimization Problems with a Large
In this paper, a novel multi-objective orthogonal simulated annealing algorithm MOOSA using a generalized Pareto-based scale-independent fitness function and multi-objective intell...
Li-Sun Shu, Shinn-Jang Ho, Shinn-Ying Ho, Jian-Hun...
GIS
1999
ACM
15 years 5 months ago
Improved Bulk-Loading Algorithms for Quadtrees
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...
Gísli R. Hjaltason, Hanan Samet