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JACM
1998
88views more  JACM 1998»
13 years 8 months ago
A Threshold of ln n for Approximating Set Cover
Given a collection Ᏺ of subsets of S ϭ {1, . . . , n}, set cover is the problem of selecting as few as possible subsets from Ᏺ such that their union covers S, and max k-cover ...
Uriel Feige
ISAAC
2010
Springer
257views Algorithms» more  ISAAC 2010»
13 years 6 months ago
Approximating Minimum Bending Energy Path in a Simple Corridor
Abstract. In this paper, we consider the problem of computing a minimum bending energy path (or MinBEP) in a simple corridor. Given a simple 2D corridor C bounded by straight line ...
Jinhui Xu, Lei Xu, Yulai Xie
WDAG
2010
Springer
233views Algorithms» more  WDAG 2010»
13 years 7 months ago
Minimum Dominating Set Approximation in Graphs of Bounded Arboricity
Abstract. Since in general it is NP-hard to solve the minimum dominating set problem even approximatively, a lot of work has been dedicated to central and distributed approximation...
Christoph Lenzen, Roger Wattenhofer
APPROX
2009
Springer
177views Algorithms» more  APPROX 2009»
14 years 3 months ago
Improved Absolute Approximation Ratios for Two-Dimensional Packing Problems
Abstract. We consider the two-dimensional bin packing and strip packing problem, where a list of rectangles has to be packed into a minimal number of rectangular bins or a strip of...
Rolf Harren, Rob van Stee
SIAMCOMP
2008
108views more  SIAMCOMP 2008»
13 years 8 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