248 search results - page 18 / 50 » Parameterized Algorithms for Directed Maximum Leaf Problems |
WADS
2009
Springer
15 years 4 months ago
2009
Springer
We present the first thorough theoretical analysis of the Transitivity Editing problem on digraphs. Herein, the task is to perform a minimum number of arc insertions or deletions ...
111
Voted
FOCS
2008
IEEE
15 years 4 months ago
2008
IEEE
We prove that approximating the Max Acyclic Subgraph problem within a factor better than 1/2 is Unique-Games hard. Specifically, for every constant ε > 0 the following holds:...
CORR
2008
Springer
14 years 9 months ago
2008
Springer
Abstract--In this paper, we investigate the use of messagepassing algorithms for the problem of finding the max-weight independent set (MWIS) in a graph. First, we study the perfor...
TIP
2010
14 years 4 months ago
2010
Much research has been devoted to the problem of restoring Poissonian images, namely for medical and astronomical applications. However, the restoration of these images using state...
100
click to vote
SPAA
2010
ACM
15 years 2 months ago
2010
ACM
We present a distributed algorithm that finds a maximal edge packing in O(∆ + log∗ W) synchronous communication rounds in a weighted graph, independent of the number of nodes...