Time Period Identification of Events in Text Taichi Noro author Takashi Inui author Hiroya Takamura author Manabu Okumura author 2006-07 text Proceedings of the 21st International Conference on Computational Linguistics and 44th Annual Meeting of the Association for Computational Linguistics Nicoletta Calzolari editor Claire Cardie editor Pierre Isabelle editor Association for Computational Linguistics Sydney, Australia conference publication noro-etal-2006-time 10.3115/1220175.1220320 https://aclanthology.org/P06-1145/ 2006-07 1153 1160