LEGOEval: An Open-Source Toolkit for Dialogue System Evaluation via Crowdsourcing Yu Li author Josh Arnold author Feifan Yan author Weiyan Shi author Zhou Yu author 2021-08 text Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing: System Demonstrations Heng Ji editor Jong C Park editor Rui Xia editor Association for Computational Linguistics Online conference publication li-etal-2021-legoeval 10.18653/v1/2021.acl-demo.38 https://aclanthology.org/2021.acl-demo.38/ 2021-08 317 324