91 search results - page 8 / 19 » A Threshold of ln n for Approximating Set Cover |
COMPGEOM
2009
ACM
14 years 2 months ago
2009
ACM
We consider the following combinatorial problem: given a set of n objects (for example, disks in the plane, triangles), and an integer L ≥ 1, what is the size of the smallest su...
DM
2006
13 years 7 months ago
2006
In this paper, we study the problem of sampling (exactly) uniformly from the set of linear extensions of an arbitrary partial order. Previous Markov chain techniques have yielded ...
JAL
2006
13 years 7 months ago
2006
: We consider a variety of vehicle routing problems. The input to a problem consists of a graph G = (N, E) and edge lengths l(e) e E. Customers located at the vertices have to be ...
MFCS
2010
Springer
13 years 6 months ago
2010
Springer
The problem of finding a satisfying assignment for a 2-SAT formula that minimizes the number of variables that are set to 1 (min ones 2–sat) is NP-complete. It generalizes the w...
APPROX
2009
Springer
14 years 2 months ago
2009
Springer
We explore the average-case “Vickrey” cost of structures in a random setting: the Vickrey cost of a shortest path in a complete graph or digraph with random edge weights; the V...