Efficient and Accurate Learning of Mixtures of Plackett-Luce Models

D. Nguyen, A. Zhang

Election type Ordinal
Culture Plackett-Luce
Candidates {100}
Voters [100-2000]
lower end for number of votes unspecified, but from plot it seems to be 100
Instances 25
Parameters None
Notes In fact a mixture of Plackett-Luce with 2 or 10 groups of voters (the voters are assigned to a group uniformly at random). In each group, the rankings are drawn from Plackett-Luce in which first 5 candidates (the same for all groups) have weights drawn from a log-normal distribution, and the remaining candidates have weight equal to 1.