A Pilot Study of Opinion Summarization in Conversations Dong Wang author Yang Liu 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 wang-liu-2011-pilot https://aclanthology.org/P11-1034/ 2011-06 331 339