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» Approximation Algorithms for Min-sum p-clustering
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SODA
2010
ACM
397views Algorithms» more  SODA 2010»
14 years 4 months ago
A Constant Factor Approximation Algorithm for Generalized Min-Sum Set Cover
Nikhil Bansal, Anupam Gupta, Ravishankar Krishnasw...
ORL
1998
137views more  ORL 1998»
13 years 7 months ago
Calculation of stability radii for combinatorial optimization problems
We present algorithms to calculate the stability radius of optimal or approximate solutions of binary programming problems with a min sum or min max objective function. Our algori...
Nilotpal Chakravarti, Albert P. M. Wagelmans
STACS
2007
Springer
14 years 1 months ago
Small Space Representations for Metric Min-Sum k -Clustering and Their Applications
The min-sum k-clustering problem is to partition a metric space (P, d) into k clusters C1, . . . , Ck ⊆ P such that k i=1 p,q∈Ci d(p, q) is minimized. We show the first effi...
Artur Czumaj, Christian Sohler
CIAC
2003
Springer
142views Algorithms» more  CIAC 2003»
13 years 11 months ago
Differential Approximation for Some Routing Problems
We study vehicle routing problems with constraints on the distance traveled by each vehicle or on the number of vehicles. The objective is to minimize the total distance traveled b...
Cristina Bazgan, Refael Hassin, Jérôm...