Sciweavers

477 search results - page 42 / 96
» Complexity Considerations, cSAT Problem Lower Bound
Sort
View
AML
2011
204views Mathematics» more  AML 2011»
13 years 3 months ago
A note on propositional proof complexity of some Ramsey-type statements
Any valid Ramsey statement n −→ (k)2 2 can be encoded into a DNF formula RAM(n, k) of size O(nk) and with terms of size k 2 . Let rk be the minimal n for which the statement h...
Jan Krajícek
RECOMB
2009
Springer
14 years 3 months ago
Counting All DCJ Sorting Scenarios
In genome rearrangements, the double cut and join (DCJ) operation, introduced by Yancopoulos et al., allows to represent most rearrangement events that could happen in multichromos...
Marília D. V. Braga, Jens Stoye
ANOR
2011
117views more  ANOR 2011»
13 years 13 days ago
A simple and effective algorithm for the MaxMin diversity problem
The challenge of maximizing the diversity of a collection of points arises in a variety of settings, including the setting of search methods for hard optimization problems. One ver...
Daniel Cosmin Porumbel, Jin-Kao Hao, Fred Glover
ICALP
2005
Springer
14 years 2 months ago
New Approaches for Virtual Private Network Design
Virtual Private Network Design is the following NP-hard problem. We are given a communication network, represented as a weighted graph with thresholds on the nodes which represent...
Friedrich Eisenbrand, Fabrizio Grandoni, Gianpaolo...
CORR
2008
Springer
76views Education» more  CORR 2008»
13 years 9 months ago
Constraint Complexity of Realizations of Linear Codes on Arbitrary Graphs
ABSTRACT. A graphical realization of a linear code C consists of an assignment of the coordinates of C to the vertices of a graph, along with a specification of linear state spaces...
Navin Kashyap