Optimizing Informativeness and Readability for Sentiment Summarization Hitoshi Nishikawa author Takaaki Hasegawa author Yoshihiro Matsuo author Genichiro Kikui author 2010-07 text Proceedings of the ACL 2010 Conference Short Papers Jan Hajič editor Sandra Carberry editor Stephen Clark editor Joakim Nivre editor Association for Computational Linguistics Uppsala, Sweden conference publication nishikawa-etal-2010-optimizing https://aclanthology.org/P10-2060/ 2010-07 325 330