%0 Conference Proceedings %T Using Machine Learning to Maintain Rule-based Named-Entity Recognition and Classification Systems %A Petasis, Georgios %A Vichot, Frantz %A Wolinski, Francis %A Paliouras, Georgios %A Karkaletsis, Vangelis %A Spyropoulos, Constantine D. %S Proceedings of the 39th Annual Meeting of the Association for Computational Linguistics %D 2001 %8 July %I Association for Computational Linguistics %C Toulouse, France %F petasis-etal-2001-using %R 10.3115/1073012.1073067 %U https://aclanthology.org/P01-1055 %U https://doi.org/10.3115/1073012.1073067 %P 426-433