Construction of Hierarchical Structured Knowledge-based Recommendation Dialogue Dataset and Dialogue System Takashi Kodama author Ribeka Tanaka author Sadao Kurohashi author 2022-05 text Proceedings of the Second DialDoc Workshop on Document-grounded Dialogue and Conversational Question Answering Song Feng editor Hui Wan editor Caixia Yuan editor Han Yu editor Association for Computational Linguistics Dublin, Ireland conference publication kodama-etal-2022-construction 10.18653/v1/2022.dialdoc-1.9 https://aclanthology.org/2022.dialdoc-1.9/ 2022-05 83 92