Abstract
We first devise a branching algorithm that computes a minimum independent dominating set with running time O *(20.424n) and polynomial space. This improves the O *(20.441n) result by (S. Gaspers and M. Liedloff, A branch-and-reduce algorithm for finding a minimum independent dominating set in graphs, Proc. WG’06). We then study approximation of the problem by moderately exponential algorithms and show that it can be approximated within ratio 1 + ε, for any ε> 0, in a time smaller than the one of exact computation and exponentially decreasing with ε. We also propose approximation algorithms with better running times for ratios greater than 3.
Research supported by the French Agency for Research under the DEFIS program TODO, ANR-09-EMER-010.
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Bourgeois, N., Escoffier, B., Paschos, V.T. (2010). Fast Algorithms for min independent dominating set . In: Patt-Shamir, B., Ekim, T. (eds) Structural Information and Communication Complexity. SIROCCO 2010. Lecture Notes in Computer Science, vol 6058. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-13284-1_20
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DOI: https://doi.org/10.1007/978-3-642-13284-1_20
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