Multiattentive Recurrent Neural Network Architecture for Multilingual Readability Assessment Ion Madrazo Azpiazu author Maria Soledad Pera author 2019 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal azpiazu-pera-2019-multiattentive 10.1162/tacl_a_00278 https://aclanthology.org/Q19-1028/ 2019 7 421 436