Q. Le, and T. Mikolov. Proceedings of the 31th International Conference on Machine Learning,
ICML 2014, Beijing, China, 21-26 June 2014, volume 32 of JMLR Workshop and Conference Proceedings, page 1188--1196. JMLR.org, (2014)
P. Le Callet, S. Möller, A. Perkis, and others. European network on quality of experience in multimedia systems and services (COST Action IC 1003), (2012)