A Simple Measure to Assess Non-response Anselmo Peñas author Alvaro Rodrigo author 2011-06 text Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies Dekang Lin editor Yuji Matsumoto editor Rada Mihalcea editor Association for Computational Linguistics Portland, Oregon, USA conference publication penas-rodrigo-2011-simple https://aclanthology.org/P11-1142/ 2011-06 1415 1424