Crowdsourcing Multiple Choice Science Questions Johannes Welbl author Nelson F Liu author Matt Gardner author 2017-09 text Proceedings of the 3rd Workshop on Noisy User-generated Text Leon Derczynski editor Wei Xu editor Alan Ritter editor Tim Baldwin editor Association for Computational Linguistics Copenhagen, Denmark conference publication welbl-etal-2017-crowdsourcing 10.18653/v1/W17-4413 https://aclanthology.org/W17-4413/ 2017-09 94 106