Using Machine Learning to Maintain Rule-based Named-Entity Recognition and Classification Systems Georgios Petasis author Frantz Vichot author Francis Wolinski author Georgios Paliouras author Vangelis Karkaletsis author Constantine D Spyropoulos author 2001-07 text Proceedings of the 39th Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics Toulouse, France conference publication petasis-etal-2001-using 10.3115/1073012.1073067 https://aclanthology.org/P01-1055/ 2001-07 426 433