iobes: Library for Span Level Processing Brian Lester author 2020-11 text Proceedings of Second Workshop for NLP Open Source Software (NLP-OSS) Eunjeong L Park editor Masato Hagiwara editor Dmitrijs Milajevs editor Nelson F Liu editor Geeticka Chauhan editor Liling Tan editor Association for Computational Linguistics Online conference publication lester-2020-iobes 10.18653/v1/2020.nlposs-1.16 https://aclanthology.org/2020.nlposs-1.16/ 2020-11 115 119