95 search results - page 2 / 19 » Approximation of Natural W[P]-Complete Minimisation Problems... |
FOCS
2002
IEEE
13 years 10 months ago
2002
IEEE
We consider the classical vertex cover and set cover problems with the addition of hard capacity constraints. This means that a set (vertex) can only cover a limited number of its...
CC
2002
Springer
13 years 5 months ago
2002
Springer
We show that for several natural classes of "structured" matrices, including symmetric, circulant, Hankel and Toeplitz matrices, approximating the permanent modulo a prim...
PODS
2007
ACM
14 years 5 months ago
2007
ACM
We consider the problem of constructing decision trees for entity identification from a given relational table. The input is a table containing information about a set of entities...
COCO
2006
Springer
13 years 9 months ago
2006
Springer
We consider a general approach to the hoary problem of (im)proving circuit lower bounds. We define notions of hardness condensing and hardness extraction, in analogy to the corres...
ICALP
2007
Springer
13 years 11 months ago
2007
Springer
Abstract. We give an fpt approximation algorithm for the directed vertex disjoint cycle problem. Given a directed graph G with n vertices and a positive integer k, the algorithm co...