Multiple Instance Learning Networks for Fine-Grained Sentiment Analysis Stefanos Angelidis author Mirella Lapata author 2018 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal angelidis-lapata-2018-multiple 10.1162/tacl_a_00002 https://aclanthology.org/Q18-1002/ 2018 6 17 31