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TALG
2010
109views more  TALG 2010»
14 years 8 months ago
Facility location with hierarchical facility costs
We introduce a facility location problem with submodular facility cost functions, and give an O(log n) approximation algorithm for it. Then we focus on a special case of submodula...
Zoya Svitkina, Éva Tardos
IPMI
1993
Springer
15 years 1 months ago
The Use of Active Shape Models for Locating Structures in Medical Images
Thispaperdescribesatechniqueforbuildingcompactmodelsoftheshapeandappearance offlexibleobjects(suchasorgans)seenin2-Dimages. Themodelsarederivedfromthestatisticsof setsof labelled i...
Timothy F. Cootes, Andrew Hill, Christopher J. Tay...
GECCO
2006
Springer
168views Optimization» more  GECCO 2006»
15 years 1 months ago
Crossover gene selection by spatial location
Spatial based gene selection for division of chromosomes used by crossover operators is proposed for three-dimensional problems. This spatial selection is shown to preserve more g...
David M. Cherba, William F. Punch
SIGIR
2008
ACM
14 years 9 months ago
Locating relevant text within XML documents
Traditional document retrieval has shown to be a competitive approach in XML element retrieval, which is counter-intuitive since the element retrieval task requests all and only r...
Jaap Kamps, Marijn Koolen, Mounia Lalmas
WINE
2005
Springer
139views Economy» more  WINE 2005»
15 years 3 months ago
Price of Anarchy, Locality Gap, and a Network Service Provider Game
In this paper, we define a network service provider game. We show that the price of anarchy of the defined game can be bounded by analyzing a local search heuristic for a related...
Nikhil R. Devanur, Naveen Garg, Rohit Khandekar, V...