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Ordering by weighted number of wins gives a good ranking for weighted tournaments

Published: 22 January 2006 Publication History

Abstract

We consider the following simple algorithm for feedback arc set problem in weighted tournaments --- order the vertices by their weighted indegrees. We show that this algorithm has an approximation guarantee of 5 if the weights satisfy probability constraints (for any pair of vertices u and v, wuv + wvu = 1). Special cases of feedback arc set problem in such weighted tournaments include feedback arc set problem in unweighted tournaments and rank aggregation. Finally, for any constant ε > 0, we exhibit an infinite family of (unweighted) tournaments for which the above algorithm (irrespective of how ties are broken) has an approximation ratio of 5 - ε.

References

[1]
N. Ailon, M. Charikar, and A. Newman. Aggregating inconsistent information: Ranking and clustering. In Proceedings of the 37th ACM Symposium on Theory of Computing (STOC), pages 684--693, 2005.
[2]
N. Alon. Ranking tournaments. In SIAM Journal on Discrete Math, To Appear.
[3]
S. Arora, A. Frieze, and H. Kaplan. A new rounding procedure for the assignment problem with applications to dense graph arrangement problems. In Proceedings of the 37th IEEE Symposium on Foundations of Computer Science (FOCS), pages 24--33, 1996.
[4]
J. Bang-Jensen and C. Thomassen. A polynomial algorithm for 2-path problem in semicomplete graphs. SIAM Journal of Discrete Math, 5(3):366--376, 1992.
[5]
J. J. Bartholdi, C. A. Tovey, and M. A. Trick. Voting schemes for which it can be difficult to tell who won the election. Social Choice and Welfare, 6(2):157--165, 1989.
[6]
B. Berger and P. W. Shor. Approximation algorithms for the maximum acyclic subgraph problem. In Proceedings of the 1st Annual ACM-SIAM Symposium on Discrete Algorithms (SODA), pages 236--243, 1990.
[7]
J. C. Borda. Mémoire sur les élections au scrutin. Histoire de l'Académie Royale des Sciences, 1781.
[8]
V. Conitzer. Computing Slater Rankings Using Similarities Among Candidates. Manuscript, 2005. Available at http://www.cs.cmu.edu/~conitzer/slater.pdf
[9]
P. Diaconis and R. Graham. Spearman's footrule as a measure of disarray. Journal of the Royal Statistical Society, Series B, 39(2):262--268, 1977.
[10]
I. Dinur and S. Safra. On the importance of being biased. In Proceedings of the 34th ACM Symposium on Theory of Computing (STOC), pages 33--42, 2002.
[11]
C. Dwork, R. Kumar, M. Naor, and D. Sivakumar. Rank aggregation methods for the web. In Proceedings of the 10th International Conference on the World Wide Web (WWW10), pages 613--622, 2001.
[12]
G. Even, J. S. Naor, M. Sudan, and B. Schieber. Approximating minimum feedback sets and multicuts in directed graphs. Algorithmica, 20(2):151--174, 1998.
[13]
R. Fagin, R. Kumar, M. Mahdian, D. Sivakumar, and E. Vee. Rank Aggregation: An Algorithmic Perspective. Unpublished Manuscript, 2005.
[14]
R. Hassin and S. Rubinstein. Approximations for the maximum acyclic subgraph problem. Information Processing Letters, 51:133--140, 1977.
[15]
R. Karp. Reducibility among combinatorial problems. Complexity of Computer Computations, pages 85--104, 1972.
[16]
C. Papadimitriou and M. Yannakakis. Optimization, approximation, and complexity classes. Journal of Computer System Science, 43:425--440, 1991.
[17]
P. Seymour. Packing directed circuits fractionally. Combinatorica, 15(2):281--288, 1995.
[18]
A. van Zuylen. Deterministic approximation algorithms for ranking and clusterings. Cornell ORIE Tech Report No. 1431, 2005.

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cover image ACM Conferences
SODA '06: Proceedings of the seventeenth annual ACM-SIAM symposium on Discrete algorithm
January 2006
1261 pages
ISBN:0898716055

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Society for Industrial and Applied Mathematics

United States

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Published: 22 January 2006

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Overall Acceptance Rate 411 of 1,322 submissions, 31%

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  • (2018)Entity Set Search of Scientific LiteratureThe 41st International ACM SIGIR Conference on Research & Development in Information Retrieval10.1145/3209978.3210055(565-574)Online publication date: 27-Jun-2018
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