Here are the slides for the EMOOCs 2016 presentation of the REX track. Link to the related vidéo : https://www.youtube.com/watch?v=QwwHOK7nZoA&list=PLv87EfjikOIg9K593G6H7milqMe0ohMKl&index=5 (EN and FR subtitles) Link to the paper : https://drive.google.com/file/d/0B-u4JzyvGkXEVXo4M0FKOUZzWXM/view?usp=sharing