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© Research
Publication : Proceedings of the VLDB Endowment

Rank aggregation with ties: Experiments and analysis

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Proceedings of the VLDB Endowment - 01 Jul 2015

Bryan Brancotte, Bo Yang, Guillaume Blin, Sarah Cohen-Boulakia, Alain Denise, Sylvie Hamel

PVLDB 2015

The problem of aggregating multiple rankings into one consensus ranking is an active research topic especially in the database community. Various studies have implemented methods for rank aggregation and may have come up with contradicting conclusions upon which algorithms work best. Comparing such results is cumbersome, as the original studies mixed different approaches and used very different evaluation datasets and metrics. Additionally, in real applications, the rankings to be aggregated may not be permutations where elements are strictly ordered, but they may have ties where some elements are placed at the same position. However, most of the studies have not considered ties. This paper introduces the first large scale study of algorithms for rank aggregation with ties. More precisely,(i) we review rank aggregation algorithms and determine whether or not they can handle ties;(ii) we propo…

https://hal.archives-ouvertes.fr/hal-01165336/document