Lina Rojas-Barahona, from Orange Labs, gave an invited talk at the laboratoire Parole et Langage at Aix-Marseille University on 22 May 2019, in the framework of a workshop on dialog systems co-organized by the LPL and the Aix-Marseille Institute for Language, Communication, and the Brain. Dr Rojas is the Orange Scientist-in-Charge for COBRA. A full recording of the talk is available here.