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82
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DAM
2007
129views more  DAM 2007»
15 years 9 days ago
Easy and hard instances of arc ranking in directed graphs
: In this paper we deal with the arc ranking problem of directed graphs. We give some classes of graphs for which the arc ranking problem is polynomially solvable. We prove that de...
Dariusz Dereniowski
88
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SWAT
1998
Springer
108views Algorithms» more  SWAT 1998»
15 years 4 months ago
Formal Language Constrained Path Problems
Given an alphabet , a (directed) graph G whose edges are weighted and -labeled, and a formal language L , the formal-language-constrained shortest/simple path problem consists of ...
Christopher L. Barrett, Riko Jacob, Madhav V. Mara...
98
Voted
FCT
2009
Springer
15 years 7 months ago
Equivalence of Deterministic Nested Word to Word Transducers
We study the equivalence problem of deterministic nested word to word transducers and show it to be suprisingly robust. Modulo polynomal time reductions, it can be identified with...
Slawomir Staworko, Grégoire Laurence, Aur&e...
112
Voted
MFCS
2009
Springer
15 years 4 months ago
Towards a Dichotomy of Finding Possible Winners in Elections Based on Scoring Rules
Abstract. To make a joint decision, agents (or voters) are often required to provide their preferences as linear orders. To determine a winner, the given linear orders can be aggre...
Nadja Betzler, Britta Dorn
ENDM
2006
96views more  ENDM 2006»
15 years 11 days ago
Exploring the complexity boundary between coloring and list-coloring
Many classes of graphs where the vertex coloring problem is polynomially solvable are known, the most prominent being the class of perfect graphs. However, the list-coloring proble...
Flavia Bonomo, Guillermo Durán, Javier Mare...