206 search results - page 15 / 42 » Constant factor approximation algorithm for the knapsack med... |
STOC
2010
ACM
14 years 5 months ago
2010
ACM
We consider the problem of maintaining a large matching or a small vertex cover in a dynamically changing graph. Each update to the graph is either an edge deletion or an edge ins...
FSTTCS
1993
Springer
13 years 11 months ago
1993
Springer
We investigate the complexity and approximability of some location problems when two distance values are specified for each pair of potential sites. These problems involve the se...
TOC
2008
13 years 7 months ago
2008
Abstract: Schnorr's algorithm for finding an approximation for the shortest nonzero vector in an n-dimensional lattice depends on a parameter k. He proved that for a fixed k ...
STOC
2007
ACM
14 years 7 months ago
2007
ACM
We demonstrate an average-case problem that is as hard as finding (n)-approximate shortest vectors in certain n-dimensional lattices in the worst case, where (n) = O( log n). The...
COMGEO
2004
ACM
13 years 7 months ago
2004
ACM
In k-means clustering we are given a set of n data points in d-dimensional space d and an integer k, and the problem is to determine a set of k points in d , called centers, to mi...