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arXiv 1407.1853cs.GT
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稳定的婚姻与普遍的偏好

Stable marriage with general preferences

Linda Farczadi, Konstantinos Georgiou, Jochen Könemann

摘要:

我们提出了一个经典的稳定婚姻问题的推广。在我们的模型中,在任意的二元关系,这不需要传递,也不需要非循环的分区的一侧的偏好。这种概括实际上是有充分动机的,正如我们所展示的,它包含了经过充分研究的稳定婚姻的硬变体,在这种变体中,偏好被允许有联系,并且是不完整的。因此,我们证明了在我们的模型中确定稳定匹配的存在是NP完全的。补充这个负面的结果,我们提出了一个多项式时间算法,在一个显着的类别的情况下,偏好是不对称的上述决策问题。我们还提出了一个线性规划公式,其可行性充分表征在这种特殊情况下的稳定匹配的存在。最后,我们使用我们的模型来研究一个长期存在的开放问题,循环三维稳定匹配的存在。特别是,我们证明了问题的决定是否固定的2D完美匹配可以扩展到一个3D稳定匹配是NP完全的,显示这种方式,一个自然的尝试,以解决存在(或不)的3D稳定匹配注定要失败。

英文摘要:

We propose a generalization of the classical stable marriage problem. In our model, the preferences on one side of the partition are given in terms of arbitrary binary relations, which need not be transitive nor acyclic. This generalization is practically well-motivated, and as we show, encompasses the well studied hard variant of stable marriage where preferences are allowed to have ties and to be incomplete. As a result, we prove that deciding the existence of a stable matching in our model is NP-complete. Complementing this negative result we present a polynomial-time algorithm for the above decision problem in a significant class of instances where the preferences are asymmetric. We also present a linear programming formulation whose feasibility fully characterizes the existence of stable matchings in this special case. Finally, we use our model to study a long standing open problem regarding the existence of cyclic 3D stable matchings. In particular, we prove that the problem of deciding whether a fixed 2D perfect matching can be extended to a 3D stable matching is NP-complete, showing this way that a natural attempt to resolve the existence (or not) of 3D stable matchings is bound to fail.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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