Improved Unsupervised POS Induction through Prototype Discovery Omri Abend author Roi Reichart author Ari Rappoport author 2010-07 text Proceedings of the 48th Annual Meeting of the Association for Computational Linguistics Jan Hajič editor Sandra Carberry editor Stephen Clark editor Joakim Nivre editor Association for Computational Linguistics Uppsala, Sweden conference publication abend-etal-2010-improved https://aclanthology.org/P10-1132/ 2010-07 1298 1307