Overview: A full ranking of n items is simply an ordering of all these items, of the form: first choice, second choice, ?. . , n-th choice. If two judges each rank the same n items, statisticians have used various metrics to measure the closeness of the two rankings, including Ken- dall‘s tau, Spearman‘s rho, Spearman‘s footrule, Ulam‘s metric, Hal1l11ing distance, and Cayley distance. These metrics have been em- ployed in many contexts, in many applied statistical and scientific problems. Thi s monograph presents genera 1 methods for extendi ng these metri cs to partially ranked data. Here "p
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