UHop: An Unrestricted-Hop Relation Extraction Framework for Knowledge-Based Question Answering Zi-Yuan Chen author Chih-Hung Chang author Yi-Pei Chen author Jijnasa Nayak author Lun-Wei Ku author 2019-06 text Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 1 (Long and Short Papers) Jill Burstein editor Christy Doran editor Thamar Solorio editor Association for Computational Linguistics Minneapolis, Minnesota conference publication chen-etal-2019-uhop 10.18653/v1/N19-1031 https://aclanthology.org/N19-1031/ 2019-06 345 356