A trigram part-of-speech tagger for the Apertium free/open-source machine translation platform Zaid Md Abdul Wahab Sheikh author Felipe Sánchez-Martínez author 2009-nov 2-3 text Proceedings of the First International Workshop on Free/Open-Source Rule-Based Machine Translation Juan Antonio Pérez-Ortiz editor Felipe Sánchez-Martinez editor Francis M Tyers editor Alacant, Spain conference publication sheikh-sanchez-martinez-2009-trigram https://aclanthology.org/2009.freeopmt-1.11/ 2009-nov 2-3 67 74