144 search results - page 11 / 29 » Improved Approximation Guarantees for Sublinear-Time Fourier... |
SIAMCOMP
2008
13 years 7 months ago
2008
We give a 7.18-approximation algorithm for the minimum latency problem that uses only O(n log n) calls to the prize-collecting Steiner tree (PCST) subroutine of Goemans and Willia...
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...
SIGECOM
2006
ACM
14 years 1 months ago
2006
ACM
We present approximation and online algorithms for a number of problems of pricing items for sale so as to maximize seller’s revenue in an unlimited supply setting. Our first r...
DAM
2007
13 years 7 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...
SODA
2001
ACM
13 years 8 months ago
2001
ACM
In the 0-extension problem, we are given a weighted graph with some nodes marked as terminals and a semimetric on the set of terminals. Our goal is to assign the rest of the nodes ...