1. Ahn, D., van Rantwijk, J., & de Rijke, M. (2007). A cascaded machine learning approach to interpreting temporal expressions. In NAACL. ACL (pp. 420–427).
2. Maintaining knowledge about temporal intervals;Allen;Communications of ACM,1983
3. On the value of temporal information in IR;Alonso;SIGIR,2007
4. Baker, C. F., Fillmore, C. J., & Lowe, J. B. (1998). The Berkeley FrameNet Project. In COLING-ACL (pp. 86–90).
5. Bethard, S., & Martin, J. H. (2006). Identification of event mentions and their semantic class. In EMNLP: Proceedings of the Conference on Empirical Methods in NLP. ACL (pp. 146–154).