A 1.875: approximation algorithm for the stable marriage problem
A 1.875: approximation algorithm for the stable marriage problem
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发表时间:
2007-01
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通讯作者:
K. Iwama;S. Miyazaki;Naoya Yamauchi
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作者:
K. Iwama;S. Miyazaki;Naoya Yamauchi
We consider the problem of finding a stable matching of maximum size when both ties and unacceptable partners are allowed in preference lists. This problem is known to be APX-hard, and the current best known approximation algorithm achieves the approximation ratio 2-c 1/√N, where c is some positive constant. In this paper, we give a 1.875-approximation algorithm, which is the first result on the approximation ratio better than two.