Abstract
Finding a stable matching is one of the central problems in algorithmic game theory. If participants are allowed to have ties and incomplete lists, computing a stable matching of maximum cardinality is known to be NP-hard. In this paper we present a \((3L-2)/(2L-1)\)-approximation algorithm for the stable matching problem with ties of size at most L and incomplete preferences. Our result matches the known lower bound on the integrality gap for the associated LP formulation.
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Koenemann, J., Pashkovich, K., Tofigzade, N. (2020). Approximating Stable Matchings with Ties of Bounded Size. In: Harks, T., Klimm, M. (eds) Algorithmic Game Theory. SAGT 2020. Lecture Notes in Computer Science(), vol 12283. Springer, Cham. https://doi.org/10.1007/978-3-030-57980-7_12
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DOI: https://doi.org/10.1007/978-3-030-57980-7_12
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