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» The Complexity of Polynomial-Time Approximation
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WINE
2005
Springer
182views Economy» more  WINE 2005»
15 years 8 months ago
Inapproximability Results for Combinatorial Auctions with Submodular Utility Functions
We consider the following allocation problem arising in the setting of combinatorial auctions: a set of goods is to be allocated to a set of players so as to maximize the sum of t...
Subhash Khot, Richard J. Lipton, Evangelos Markaki...
DCG
2010
137views more  DCG 2010»
15 years 3 months ago
Improved Results on Geometric Hitting Set Problems
We consider the problem of computing minimum geometric hitting sets in which, given a set of geometric objects and a set of points, the goal is to compute the smallest subset of p...
Nabil H. Mustafa, Saurabh Ray
SIAMCOMP
2008
108views more  SIAMCOMP 2008»
15 years 3 months ago
The Euclidean Orienteering Problem Revisited
We consider the rooted orienteering problem: Given a set P of n points in the plane, a starting point r P, and a length constraint B, one needs to find a path starting from r tha...
Ke Chen 0006, Sariel Har-Peled
NETWORKS
2007
15 years 2 months ago
Incremental flow
This paper defines an incremental version of the maximum flow problem. In this model, the capacities increase over time and the resulting solution is a sequence of flows that b...
Jeff Hartline, Alexa Sharp
SWAT
2004
Springer
123views Algorithms» more  SWAT 2004»
15 years 8 months ago
A Simple Linear-Time Modular Decomposition Algorithm for Graphs, Using Order Extension
The first polynomial time algorithm (O(n4 )) for modular decomposition appeared in 1972 [8] and since then there have been incremental improvements, eventually resulting in linear...
Michel Habib, Fabien de Montgolfier, Christophe Pa...