2018
DOI: 10.1016/j.tcs.2018.03.015
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Parameterized algorithms for stable matching with ties and incomplete lists

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Cited by 21 publications
(52 citation statements)
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“…First, to better understand the NPcompleteness result, one may study the parameterized complexity with respect to the "degree" of incompleteness of the input preferences, such as the number of ties or the number of agents that are in the same equivalence class of the tie-relation. We refer to some recent papers on the parameterized complexity of preference-based stable matching problems [1,11,12,[14][15][16]29,[40][41][42]45] for this line of research. Second, we were not able to settle the computational complexity for complete preferences that are also single-peaked and single-crossing.…”
Section: Resultsmentioning
confidence: 99%
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“…First, to better understand the NPcompleteness result, one may study the parameterized complexity with respect to the "degree" of incompleteness of the input preferences, such as the number of ties or the number of agents that are in the same equivalence class of the tie-relation. We refer to some recent papers on the parameterized complexity of preference-based stable matching problems [1,11,12,[14][15][16]29,[40][41][42]45] for this line of research. Second, we were not able to settle the computational complexity for complete preferences that are also single-peaked and single-crossing.…”
Section: Resultsmentioning
confidence: 99%
“…contains the rank of agent x in the preference list of agent y. Herein, the rank of agent y in agent x's preference list is defined as the number of agents that are strictly preferred to y by x. For example, if the preference list of agent 1 is 1 2 3 ∼ 4 5 ∼ 6 7, then we may have L 1 =[1,2,3,4,5,6,7] and have R[1,1] = 0, R[1, 2] = 1, R[1, 3] = 2, R[1, 4] = 2, R[1, 5] = 4, R[1, 6] = 4, and R[1, 7] = 6.Before we show the correctness of Algorithm 2, we first claim the following. Each call of InsertMostPreferred(z)(a) assumes D[z] = 0, (b) finds all unmatched agents y which are tied with agent L z [ p z ] and sets A[z, y ] = 1 (Lines (17)-(23)), and (c) pushes a possible matching event {z, y } to Q if, additionally, y also finds z most acceptable (Lines (20)-(21)).…”
mentioning
confidence: 99%
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“…Proof. Towards a contradiction to (1), suppose that there is a stable matching M with M (a 5 ) / ∈ X. Then, by the preferences of a 5 , there remain three possibilities (i)-(iii) for the partner of a 5 .…”
Section: Incomplete Preferencesmentioning
confidence: 99%
“…Let M be a stable matching for our profile. For the first statement, Lemma 4.2 (1) immediately implies that for every selector agent b 5 j , 1 ≤ j ≤ k, it holds that M (a 5 j ) ∈ {u 10 i |…”
Section: The Above Preferences Are Narcissistic As Well As Single-peamentioning
confidence: 99%