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DAM
2008
140views more  DAM 2008»
15 years 5 months ago
The minimum spanning strong subdigraph problem is fixed parameter tractable
A digraph D is strong if it contains a directed path from x to y for every choice of vertices x, y in D. We consider the problem (MSSS) of finding the minimum number of arcs in a ...
Jørgen Bang-Jensen, Anders Yeo
SWAT
2004
Springer
117views Algorithms» more  SWAT 2004»
15 years 11 months ago
Maximizing the Number of Packed Rectangles
Given a set of rectangles we are asked to pack as many of them as possible into a bigger rectangle. The rectangles packed may not overlap and may not be rotated. This problem is NP...
Klaus Jansen, Guochuan Zhang
ICTAI
2006
IEEE
16 years 9 days ago
Computing Horn Strong Backdoor Sets Thanks to Local Search
In this paper a new approach for computing Strong Backdoor sets of boolean formula in conjunctive normal form (CNF) is proposed. It makes an original use of local search technique...
Lionel Paris, Richard Ostrowski, Pierre Siegel, La...
SAGT
2010
Springer
181views Game Theory» more  SAGT 2010»
15 years 4 months ago
On the Complexity of Pareto-optimal Nash and Strong Equilibria
We consider the computational complexity of coalitional solution concepts in scenarios related to load balancing such as anonymous and congestion games. In congestion games, Paret...
Martin Hoefer, Alexander Skopalik
ICTAI
2007
IEEE
16 years 18 days ago
Strong Inverse Consistencies for Non-Binary CSPs
Domain filtering local consistencies, such as inverse consistencies, that only delete values and do not add new constraints are particularly useful in Constraint Programming. Alt...
Kostas Stergiou