The Dirichlet distribution with respect to the Aitchison measure on the simplex - a first approach
Glòria Mateu‐Figueras, Vera Pawlowsky‐Glahn · Universitat de Girona Digital Repository (Universitat de Girona) · 2005
The algebraic-geometric structure of the simplex, known as Aitchison geometry, is used to look at the Dirichlet family of distributions from a new perspective. A classical Dirichlet density function is expressed with respect to the Lebesgue measure on real space. We propose here to change this measure by the Aitchison measure on the simplex, and study some properties and characteristic measures of the resulting density