SECTOR: A Neural Model for Coherent Topic Segmentation and Classification Sebastian Arnold author Rudolf Schneider author Philippe Cudré-Mauroux author Felix A Gers author Alexander Löser author 2019 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal arnold-etal-2019-sector 10.1162/tacl_a_00261 https://aclanthology.org/Q19-1011/ 2019 7 169 184