MetaAnn: Um Gerador de Ferramentas para Anotação de Textos (MetaAnn: a Generator of Text Annotation Tools) [in Portuguese] Tiago Emanuel Infante Missão author Norton Trevisan Roman author 2013 text Proceedings of the 9th Brazilian Symposium in Information and Human Language Technology conference publication missao-roman-2013-metaann https://aclanthology.org/W13-4802/ 2013