275 search results - page 2 / 55 » Parameterized Complexity of Generalized Vertex Cover Problem... |
ACID
2006
13 years 6 months ago
2006
We consider the concepts of a t-total vertex cover and a t-total edge cover (t 1), which generalize the notions of a vertex cover and an edge cover, respectively. A t-total verte...
ESA
2003
Springer
13 years 10 months ago
2003
Springer
Let G = (V, E) be an undirected graph, with three numbers d0(e) ≥ d1(e) ≥ d2(e) ≥ 0 for each edge e ∈ E. A solution is a subset U ⊆ V and di(e) represents the cost contr...
PODC
2009
ACM
14 years 5 months ago
2009
ACM
The paper presents distributed and parallel -approximation algorithms for covering problems, where is the maximum number of variables on which any constraint depends (for example...
ANTSW
2006
Springer
13 years 8 months ago
2006
Springer
Abstract. For solving combinatorial optimisation problems, exact methods accurately exploit the structure of the problem but are tractable only up to a certain size; approximation ...
MFCS
2010
Springer
13 years 3 months ago
2010
Springer
The problem of finding a satisfying assignment for a 2-SAT formula that minimizes the number of variables that are set to 1 (min ones 2–sat) is NP-complete. It generalizes the w...