Meaningful Conversation with a Mobile Robot Johan Bos author Ewan Klein author Tetsushi Oka author 2003-04 text 10th Conference of the European Chapter of the Association for Computational Linguistics Ann Copestake editor Jan Hajič editor Association for Computational Linguistics Budapest, Hungary conference publication bos-etal-2003-meaningful https://aclanthology.org/E03-1042/ 2003-04