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» The Guarding Problem - Complexity and Approximation
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IPPS
2006
IEEE
16 years 21 days ago
On the performance of parallel normalized explicit preconditioned conjugate gradient type methods
A new class of parallel normalized preconditioned conjugate gradient type methods in conjunction with normalized approximate inverses algorithms, based on normalized approximate f...
George A. Gravvanis, Konstantinos M. Giannoutakis
IPPS
2005
IEEE
16 years 8 days ago
Tight Bounds for Wavelength Assignment on Trees of Rings
: A fundamental problem in communication networks is wavelength assignment (WA): given a set of routing paths on a network, assign a wavelength to each path such that the paths wit...
Zhengbing Bian, Qian-Ping Gu, Xiao Zhou
FOCS
2000
IEEE
15 years 11 months ago
Fairness Measures for Resource Allocation
In many optimization problems, one seeks to allocate a limited set of resources to a set of individuals with demands. Thus, such allocations can naturally be viewed as vectors, wi...
Amit Kumar, Jon M. Kleinberg
SODA
1997
ACM
119views Algorithms» more  SODA 1997»
15 years 8 months ago
Map Labeling and Its Generalizations
Map labeling is of fundamental importance in cartography and geographical information systems and is one of the areas targeted for research by the ACM Computational Geometry Impac...
Srinivas Doddi, Madhav V. Marathe, Andy Mirzaian, ...
SODA
1998
ACM
106views Algorithms» more  SODA 1998»
15 years 8 months ago
Greedy Strikes Back: Improved Facility Location Algorithms
A fundamental facility location problem is to choose the location of facilities, such as industrial plants and warehouses, to minimize the cost of satisfying the demand for some c...
Sudipto Guha, Samir Khuller