Summarizing Contrastive Viewpoints in Opinionated Text Michael Paul author ChengXiang Zhai author Roxana Girju author 2010-10 text Proceedings of the 2010 Conference on Empirical Methods in Natural Language Processing Hang Li editor Lluís Màrquez editor Association for Computational Linguistics Cambridge, MA conference publication paul-etal-2010-summarizing https://aclanthology.org/D10-1007/ 2010-10 66 76