Concept-based Persona Expansion for Improving Diversity of Persona-Grounded Dialogue Donghyun Kim author Youbin Ahn author Chanhee Lee author Wongyu Kim author Kyong-Ho Lee author Donghoon Shin author Yeonsoo Lee author 2023-05 text Proceedings of the 17th Conference of the European Chapter of the Association for Computational Linguistics Andreas Vlachos editor Isabelle Augenstein editor Association for Computational Linguistics Dubrovnik, Croatia conference publication kim-etal-2023-concept 10.18653/v1/2023.eacl-main.252 https://aclanthology.org/2023.eacl-main.252/ 2023-05 3471 3481