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WADS
2005
Springer
108views Algorithms» more  WADS 2005»
13 years 10 months ago
Improved Fixed-Parameter Algorithms for Two Feedback Set Problems
Abstract. Settling a ten years open question, we show that the NPcomplete Feedback Vertex Set problem is deterministically solvable in O(ck ·m) time, where m denotes the number of...
Jiong Guo, Jens Gramm, Falk Hüffner, Rolf Nie...
CIAC
2006
Springer
111views Algorithms» more  CIAC 2006»
13 years 8 months ago
Fixed-Parameter Tractability Results for Feedback Set Problems in Tournaments
Complementing recent progress on classical complexity and polynomial-time approximability of feedback set problems in (bipartite) tournaments, we extend and partially improve fixed...
Michael Dom, Jiong Guo, Falk Hüffner, Rolf Ni...
DAM
2008
140views more  DAM 2008»
13 years 4 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
ESA
2009
Springer
151views Algorithms» more  ESA 2009»
13 years 11 months ago
Experimental Study of FPT Algorithms for the Directed Feedback Vertex Set Problem
Abstract. We evaluate the performance of FPT algorithms for the directed feedback vertex set problem (DFVS). We propose several new data reduction rules for DFVS. which can signiï¬...
Rudolf Fleischer, Xi Wu, Liwei Yuan