20 search results - page 1 / 4 » A Fast Approximation for Maximum Weight Matroid Intersection |
DAM
2006
13 years 4 months ago
2006
The maximum intersection problem for a matroid and a greedoid, given by polynomialtime oracles, is shown NP-hard by expressing the satisfiability of boolean formulas in 3-conjunct...
FCT
2001
Springer
13 years 9 months ago
2001
Springer
Abstract. The maximum intersection problem for a matroid and a greedoid, given by polynomial-time oracles, is shown NP-hard by expressing the satisfiability of boolean formulas in...
COCOON
2003
Springer
13 years 9 months ago
2003
Springer
In this paper, we approach the quality of a greedy algorithm for the maximum weighted clique problem from the viewpoint of matroid theory. More precisely, we consider the clique c...
GECCO
2007
Springer
13 years 10 months ago
2007
Springer
We analyze the performance of evolutionary algorithms on various matroid optimization problems that encompass a vast number of efficiently solvable as well as NP-hard combinatoria...
WG
2004
Springer
13 years 10 months ago
2004
Springer
A unit disk graph is the intersection graph of unit disks in the euclidean plane. We present a polynomial-time approximation scheme for the maximum weight independent set problem i...