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- W85190113 abstract "The stable marriage problem has received considerable attention both due to its practical applications as well as its mathematical structure. While the original problem has all participants rank all members of the opposite sex in a strict order of preference, two natural variations are to allow for incomplete preference lists and ties in the preferences. Both variations are polynomially solvable by a variation of the classical algorithm of Gale and Shapley. On the other hand, it has recently been shown to be NP-hard to .nd a maximum cardinality stable matching when both of the variations are allowed.We show here that it is APX-hard to approximate the maximum cardinality stable matching with incomplete lists and ties. This holds for some very restricted instances both in terms of lengths of preference lists, and lengths and occurrences of ties in the lists. We also obtain an optimal Ω(N) hardness results for ‘minimum egalitarian’ and ‘minimum regret’ variants.KeywordsStable MatchTruth AssignmentPreference ListStable MarriageBlocking PairThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves." @default.
- W85190113 created "2016-06-24" @default.
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- W85190113 date "2002-01-01" @default.
- W85190113 modified "2023-10-18" @default.
- W85190113 title "Inapproximability Results on Stable Marriage Problems" @default.
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- W85190113 doi "https://doi.org/10.1007/3-540-45995-2_48" @default.
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