TY - GEN
T1 - Tractable parameterizations for the minimum linear arrangement problem
AU - Fellows, Michael R.
AU - Hermelin, Danny
AU - Rosamond, Frances A.
AU - Shachnai, Hadas
PY - 2013/9/24
Y1 - 2013/9/24
N2 - The Minimum Linear Arrangement (MLA) problem asks to embed a given graph on the integer line so that the sum of the edge lengths of the embedded graph is minimized. Most layout problems are either intractable, or not known to be tractable, parameterized by the treewidth of the input graphs. We investigate MLA with respect to three parameters that provide more structure than treewidth. In particular, we give a factor (1 + ε)-approximation algorithm for MLA parameterized by (ε, k), where k is the vertex cover number of the input graph. By a similar approach, we describe two FPT algorithms that exactly solve MLA parameterized by, respectively, the max leaf and edge clique cover numbers of the input graph.
AB - The Minimum Linear Arrangement (MLA) problem asks to embed a given graph on the integer line so that the sum of the edge lengths of the embedded graph is minimized. Most layout problems are either intractable, or not known to be tractable, parameterized by the treewidth of the input graphs. We investigate MLA with respect to three parameters that provide more structure than treewidth. In particular, we give a factor (1 + ε)-approximation algorithm for MLA parameterized by (ε, k), where k is the vertex cover number of the input graph. By a similar approach, we describe two FPT algorithms that exactly solve MLA parameterized by, respectively, the max leaf and edge clique cover numbers of the input graph.
UR - http://www.scopus.com/inward/record.url?scp=84884335144&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-40450-4_39
DO - 10.1007/978-3-642-40450-4_39
M3 - Conference contribution
AN - SCOPUS:84884335144
SN - 9783642404498
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 457
EP - 468
BT - Algorithms, ESA 2013 - 21st Annual European Symposium, Proceedings
T2 - 21st Annual European Symposium on Algorithms, ESA 2013
Y2 - 2 September 2013 through 4 September 2013
ER -