REPORT Pappas_Idiap-RR-17-2017/IDIAP Multilingual Hierarchical Attention Networks for Document Classification Pappas, Nikolaos Popescu-Belis, Andrei attention mechanism hierarchical neural networks multilinguality EXTERNAL https://publications.idiap.ch/attachments/reports/2017/Pappas_Idiap-RR-17-2017.pdf PUBLIC Idiap-RR-17-2017 2017 Idiap July 2017 https://arxiv.org/abs/1707.00896 URL