3874 search results - page 73 / 775 » Approximation Algorithms for k-hurdle Problems |
CCCG
2010
14 years 11 months ago
2010
The cluster connecting problem inside a simple polygon is introduced in this paper. The problem is shown to be NP-complete. A log n-factor approximation algorithm is proposed.
ICALP
2005
Springer
15 years 3 months ago
2005
Springer
Abstract. We generalize the k-means algorithm presented by the authors [14] and show that the resulting algorithm can solve a larger class of clustering problems that satisfy certa...
SODA
2000
ACM
14 years 11 months ago
2000
ACM
In this paper we give approximation algorithms for several proximity problems in high dimensional spaces. In particular, we give the rst Las Vegas data structure for (1 + )-neares...
COCO
2006
Springer
15 years 1 months ago
2006
Springer
We provide the first hardness result for the Covering Radius Problem on lattices (CRP). Namely, we show that for any large enough p there exists a constant cp > 1 such that C...
DAM
2007
14 years 9 months ago
2007
We give a short proof of a result of Tovey [6] on the inapproximability of a scheduling problem known as precedence constrained class sequencing. In addition, we present an approxi...