95 search results - page 4 / 19 » Approximation of Natural W[P]-Complete Minimisation Problems... |
CATS
2006
13 years 9 months ago
2006
We consider the following clustering problems: given a general undirected graph, partition its vertices into disjoint clusters such that each cluster forms a clique and the number...
CORR
2008
Springer
13 years 7 months ago
2008
Springer
We address the problem of determining a natural local neighbourhood or "cluster" associated to a given seed vertex in an undirected graph. We formulate the task in terms...
SODA
2012
ACM
11 years 10 months ago
2012
ACM
The Directed Steiner Tree (DST) problem is a cornerstone problem in network design. We focus on the generalization of the problem with higher connectivity requirements. The proble...
COCO
2004
Springer
13 years 11 months ago
2004
Springer
We initiate the study of the computational complexity of the covering radius problem for point lattices, and approximation versions of the problem for both lattices and linear cod...
FOCS
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract— A number of recent results on optimization problems involving submodular functions have made use of the ”multilinear relaxation” of the problem [3], [8], [24], [14]...