Temporal Signals Help Label Temporal Relations Leon Derczynski author Robert Gaizauskas author 2013-08 text Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers) Hinrich Schuetze editor Pascale Fung editor Massimo Poesio editor Association for Computational Linguistics Sofia, Bulgaria conference publication derczynski-gaizauskas-2013-temporal https://aclanthology.org/P13-2114/ 2013-08 645 650