47 search results - page 6 / 10 » Improved Approximation Guarantees for Lower-Bounded Facility... |
SODA
2010
ACM
14 years 4 months ago
2010
ACM
The crossing number of a graph is the least number of pairwise edge crossings in a drawing of the graph in the plane. We provide an O(n log n) time constant factor approximation al...
DAGSTUHL
2007
13 years 8 months ago
2007
We consider the problems of set partitioning into k clusters with minimum total cost and minimum of the maximum cost of a cluster. The cost function is given by an oracle, and we ...
WAOA
2004
Springer
14 years 10 days ago
2004
Springer
We consider a non-preemptive, stochastic parallel machine scheduling model with the goal to minimize the weighted completion times of jobs. In contrast to the classical stochastic ...
APPROX
2011
Springer
12 years 7 months ago
2011
Springer
Abstract. We study the space complexity of randomized streaming algorithms that provide one-sided approximation guarantees; e.g., the algorithm always returns an overestimate of th...
FOCS
1993
IEEE
13 years 11 months ago
1993
IEEE
We consider the following scenario. A point robot is placed at some start location ¡ in a 2dimensional scene containing oriented rectangular obstacles. The robot must repeatedly ...