A farewell to arms: Non-verbal communication for non-humanoid robots Aaron G Cass author Kristina Striegnitz author Nick Webb author 2018-11 text Proceedings of the Workshop on NLG for Human–Robot Interaction Mary Ellen Foster editor Hendrik Buschmeier editor Dimitra Gkatzia editor Association for Computational Linguistics Tilburg, The Netherlands conference publication cass-etal-2018-farewell 10.18653/v1/W18-6905 https://aclanthology.org/W18-6905/ 2018-11 22 26