Chang Chiann has a BSc (1989) and an MSc (1993) in Statistics from the University of São Paulo, São Paulo, Brazil, where she also received a PhD (1997) and a Postdoctoral degree (2000), under the supervision of Prof. Pedro A. Morettin. From 1997 to 2000 she joined the International Cooperation Project (CNPq/NSF Agreement) with Professor David R. Brillinger, from the University of California, Berkeley. She is currently Associate Professor 3 at the University of São Paulo. Her research mainly focuses on Wavelets, Time Series, Bioavailability and Bioequivalence Analysis, Biosimilars, and Clinical Trials. Aluísio de Souza Pinheiro received a BSc in Statistics from the National School of Statistical Sciences, Rio de Janeiro, Brazil, in 1989, an MSc in Statistics from the University of Campinas, Campinas, Brazil, in 1992, and a PhD in statistics from the University of North Carolina (UNC) at Chapel Hill, Chapel Hill, NC, USA, in 1997.

After his PhD, he joined the Department of Statistics, University of Campinas. In 2012, he was the P. K. Sen Distinguished Visiting Professor of Biostatistics with the UNC Gillings School of Global Public Health. He is currently a Professor of Statistics at the University of Campinas, Campinas, Brazil. His research interests include nonparametric statistics, especially on generalized U-statistics and wavelet methodologies with applications in high-dimensional data, genetics, education, image analysis and the biological sciences. Dr. Pinheiro was on the Governing Board of the Brazilian Statistical Association on two occasions, as General Secretary (2010-2012) and as Treasurer (2018-2020).

Clélia Maria Castro Toloi has a master's (1980) and a PhD (1988) from the University of São Paulo, supervised by Prof. Pedro A. Morettin. She is currently a retired Associate Professor 3 at the University of São Paulo. She has experience in the area of Probability and Statistics, with emphasis on Spectral Analysis and Time Series Models. Dr. Toloi was President of the Brazilian Statistical Association (2002-2004).