TY - JOUR
T1 - Algorithms with large domination ratio
AU - Alon, Noga
AU - Gutin, Gregory
AU - Krivelevich, Michael
N1 - Funding Information:
* Corresponding author. E-mail addresses: [email protected] (N. Alon), [email protected] (G. Gutin), [email protected] (M. Krivelevich). 1 Research supported in part by a USA–Israeli BSF grant and by a grant from the Israel Science Foundation. 2 Research supported in part by a USA–Israel BSF Grant, by a grant from the Israel Science Foundation, and by a Bergmann Memorial Grant.
PY - 2004/1
Y1 - 2004/1
N2 - Let P be an optimization problem, and let A be an approximation algorithm for P. The domination ratio domr(A, n) is the maximum real q such that the solution x(I) obtained by A for any instance I of P of size n is not worse than at least a fraction q of the feasible solutions of I. We describe a deterministic, polynomial-time algorithm with domination ratio 1 - o(1) for the partition problem, and a deterministic, polynomial-time algorithm with domination ratio Ω(1) for the MaxCut problem and for some far-reaching extensions of it, including Max-r-Sat, for each fixed r. The techniques combine combinatorial and probabilistic methods with tools from harmonic analysis.
AB - Let P be an optimization problem, and let A be an approximation algorithm for P. The domination ratio domr(A, n) is the maximum real q such that the solution x(I) obtained by A for any instance I of P of size n is not worse than at least a fraction q of the feasible solutions of I. We describe a deterministic, polynomial-time algorithm with domination ratio 1 - o(1) for the partition problem, and a deterministic, polynomial-time algorithm with domination ratio Ω(1) for the MaxCut problem and for some far-reaching extensions of it, including Max-r-Sat, for each fixed r. The techniques combine combinatorial and probabilistic methods with tools from harmonic analysis.
KW - Approximation algorithms
KW - Combinatorial optimization
KW - Domination analysis
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U2 - 10.1016/j.jalgor.2003.09.003
DO - 10.1016/j.jalgor.2003.09.003
M3 - Article
AN - SCOPUS:0346640462
SN - 0196-6774
VL - 50
SP - 118
EP - 131
JO - Journal of Algorithms
JF - Journal of Algorithms
IS - 1
ER -