TY - GEN
T1 - Robustness of minimum cost arborescences
AU - Kamiyama, Naoyuki
PY - 2011/12/26
Y1 - 2011/12/26
N2 - In this paper, we study the minimum cost arborescence problem in a directed graph from the viewpoint of robustness of the optimal objective value. More precisely, we characterize an input graph in which the optimal objective value does not change even if we remove several arcs. Our characterizations lead to efficient algorithms for checking robustness of an input graph.
AB - In this paper, we study the minimum cost arborescence problem in a directed graph from the viewpoint of robustness of the optimal objective value. More precisely, we characterize an input graph in which the optimal objective value does not change even if we remove several arcs. Our characterizations lead to efficient algorithms for checking robustness of an input graph.
UR - http://www.scopus.com/inward/record.url?scp=84055217350&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84055217350&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-25591-5_15
DO - 10.1007/978-3-642-25591-5_15
M3 - Conference contribution
AN - SCOPUS:84055217350
SN - 9783642255908
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 130
EP - 139
BT - Algorithms and Computation - 22nd International Symposium, ISAAC 2011, Proceedings
T2 - 22nd International Symposium on Algorithms and Computation, ISAAC 2011
Y2 - 5 December 2011 through 8 December 2011
ER -