Learning the Structure of Variable-Order CRFs: a finite-state perspective Thomas Lavergne author François Yvon author 2017-09 text Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing Martha Palmer editor Rebecca Hwa editor Sebastian Riedel editor Association for Computational Linguistics Copenhagen, Denmark conference publication lavergne-yvon-2017-learning 10.18653/v1/D17-1044 https://aclanthology.org/D17-1044/ 2017-09 433 439