Yannis Avrithis
Dates: October 2014 (2 weeks)
Institution: National Technical University of Athens (Greece)
Miaojing Shi
Dates: February 2014–January 2015 (1 year)
Subject: Large scale visual search
Institution: Pekin University (China)
Petra Bosilj
Date: Sep. – Nov., 2014
Institution: Johann Bernoulli institute, Groningen, The Netherlands
Anca-Roxana Simon
Date: Apr. – June, 2014
Institution: Katholieke Universiteit Leuven, Belgium