1. Departmento de Ciência da Computação, Universidade Federal de Minas Gerais Belo Horizonte, Minas Gerais, Brazil
2. Department of Statistics, The Ohio State University, Columbus, Ohio, U.S.A.
3. Department of Statistics, University of Missouri, Columbia, Mo., U.S.A.
4. Department of Statistics, Purdue University, West Lafayette, Indiana, U.S.A.
5. University of Bergamo, Dalmine, Italy
6. Statistical and Applied Mathematical Science Institute (SAMSI), Research Triangle Park, North Carolina, U.S.A.
7. Indiana University–Purdue University Indianapolis, Indianapolis, In., U.S.A.