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Local transformations and conjunctive-query equivalence
Ronald Fagin, Phokion G. Kolaitis
SIGMOD/PODS 2012
Paper
Comparing partial rankings
Abstract
We provide a comprehensive picture of how to compare partial rankings, that is, rankings that allow ties. We propose several metrics to compare partial rankings and prove that they are within constant multiples of each other. © 2006 Society for Industrial and Applied Mathematics.
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