More is Better: Enhancing Open-Domain Dialogue Generation via Multi-Source Heterogeneous Knowledge Sixing Wu author Ying Li author Minghui Wang author Dawei Zhang author Yang Zhou author Zhonghai Wu author 2021-11 text Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing Marie-Francine Moens editor Xuanjing Huang editor Lucia Specia editor Scott Wen-tau Yih editor Association for Computational Linguistics Online and Punta Cana, Dominican Republic conference publication wu-etal-2021-better 10.18653/v1/2021.emnlp-main.175 https://aclanthology.org/2021.emnlp-main.175/ 2021-11 2286 2300