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CSL
2007
Springer
14 years 2 months ago
Subexponential Time and Fixed-Parameter Tractability: Exploiting the Miniaturization Mapping
Recently it has been shown that the miniaturization mapping M faithfully translates subexponential parameterized complexity into (unbounded) parameterized complexity. We determine...
Yijia Chen, Jörg Flum
SODA
2010
ACM
261views Algorithms» more  SODA 2010»
14 years 6 months ago
Bidimensionality and Kernels
Bidimensionality theory appears to be a powerful framework in the development of meta-algorithmic techniques. It was introduced by Demaine et al. [J. ACM 2005 ] as a tool to obtai...
Fedor V. Fomin, Daniel Lokshtanov, Saket Saurabh, ...
AAAI
2010
13 years 10 months ago
Fast Local Search Algorithm for Weighted Feedback Arc Set in Tournaments
We present a fast local search algorithm that finds an improved solution (if there is any) in the k-exchange neighborhood of the given solution to an instance of WEIGHTED FEEDBACK...
Fedor V. Fomin, Daniel Lokshtanov, Venkatesh Raman...
COCO
2004
Springer
119views Algorithms» more  COCO 2004»
14 years 8 days ago
Tight Lower Bounds for Certain Parameterized NP-Hard Problems
Based on the framework of parameterized complexity theory, we derive tight lower bounds on the computational complexity for a number of well-known NP-hard problems. We start by pr...
Jianer Chen, Benny Chor, Mike Fellows, Xiuzhen Hua...
SIAMCOMP
2008
133views more  SIAMCOMP 2008»
13 years 8 months ago
A Deterministic Subexponential Algorithm for Solving Parity Games
The existence of polynomial time algorithms for the solution of parity games is a major open problem. The fastest known algorithms for the problem are randomized algorithms that r...
Marcin Jurdzinski, Mike Paterson, Uri Zwick