Retrieval, Re-ranking and Multi-task Learning for Knowledge-Base Question Answering Zhiguo Wang author Patrick Ng author Ramesh Nallapati author Bing Xiang author 2021-04 text Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume Paola Merlo editor Jorg Tiedemann editor Reut Tsarfaty editor Association for Computational Linguistics Online conference publication wang-etal-2021-retrieval 10.18653/v1/2021.eacl-main.26 https://aclanthology.org/2021.eacl-main.26/ 2021-04 347 357