- Shantanu Das (Aix-Marseille University, Marseille, France), 1-30 November, 2019.
- Jeremie Chalopin (CNRS Researcher, Laboratoire D’ Informatique & Systemes, Marseille, France), 12-17 July, 2019.
- Flaminia Luccio (Universita Ca’ Foscari Venezia, Venice, Italy), 14-17 May, 2017.
- Christos Papageorgakis (INRIA Sophia-Antipolis, France), 3-4 April, 2017.
- Juliette Leblond (INRIA Sophia-Antipolis, France), 3-4 April, 2017 (talk-slides).
- Evangelos Kranakis (Carleton University, Ottawa, Canada), 4-11 March, 2015.
- Danny Krizanc (Wesleyan University, Middletown, CT, USA), 4-11 March, 2015.
- Shantanu Das (Aix-Marseille University, Marseille, France), 13-29 September, 2014.
- Michel Paquette (Vanier College, Montreal, Canada), 4-25 June, 2011.