Concentric Mixtures of Mallows Models for Top-k Rankings:
               Sampling and Identifiability

                      Fabien Collas 1 Ekhine Irurozki 1 2

            Abstract                millions of results.
   In this paper, we study mixtures of two Mallows      The Mallows model (MM) (Fligner & Verducci, 1986; Mal-
   models for top-k rankings with equal location pa-     lows, 1957) is one of the preferred distributions to model
   rameters but with different scale parameters (a     ...