630 search results - page 13 / 126 » Hardness results for approximating the bandwidth |
CPM
2005
Springer
14 years 11 months ago
2005
Springer
Abstract. Speeding up approximate pattern matching is a line of research in stringology since the 80’s. Practically fast approaches belong to the class of filtration algorithms,...
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FOCS
2008
IEEE
15 years 3 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:...
APPROX
2009
Springer
15 years 4 months ago
2009
Springer
We study the maximization version of the fundamental graph coloring problem. Here the goal is to color the vertices of a k-colorable graph with k colors so that a maximum fraction ...
ICMCS
2007
IEEE
15 years 3 months ago
2007
IEEE
Limited bandwidth and high packet loss pose a serious challenge for video streaming over wireless networks. Even when packet loss in the medium is not present, the fluctuating ava...
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TAMC
2010
Springer
14 years 7 months ago
2010
Springer
Clique-width is an important graph parameter whose computation is NP-hard. In fact we do not know of any other algorithm than brute force for the exact computation of clique-width...