3 papers
stat.ME2026
Bayesian Plackett--Luce latent block models for ranked data
Lapo Santi, Nial Friel, Valeria Vitelli
We introduce a Bayesian latent block model that jointly partitions assessors and items under a Plackett--Luce observation model. Assessors are assigned to clusters and items to…
stat.ME2026
Ordering Stochastic Block Models via prior transitivity
Lapo Santi, Nial Friel, Pierpaolo De Blasi
In directed networks, nodes may form groups with similar interaction patterns, while these groups may themselves follow an ordered structure. Existing methods typically treat these…
stat.ME2025
The Bradley-Terry Stochastic Block Model
Lapo Santi, Nial Friel
The Bradley-Terry model is widely used for the analysis of pairwise comparison data and, in essence, produces a ranking of the items under comparison. We embed the Bradley-Terry mo…