Syntactically Meaningful and Transferable Recursive Neural Networks for Aspect and Opinion Extraction Wenya Wang author Sinno Jialin Pan author 2019-12 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal wang-pan-2019-syntactically 10.1162/coli_a_00362 https://aclanthology.org/J19-4004/ 2019-12 45 4 705 736