NLQuAD: A Non-Factoid Long Question Answering Data Set Amir Soleimani author Christof Monz author Marcel Worring 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 soleimani-etal-2021-nlquad 10.18653/v1/2021.eacl-main.106 https://aclanthology.org/2021.eacl-main.106/ 2021-04 1245 1255