Cascading Use of Soft and Hard Matching Pattern Rules for Weakly Supervised Information Extraction Jing Xiao author Tat-Seng Chua author Hang Cui author 2004-aug 23–aug 27 text COLING 2004: Proceedings of the 20th International Conference on Computational Linguistics COLING Geneva, Switzerland conference publication xiao-etal-2004-cascading https://aclanthology.org/C04-1078/ 2004-aug 23–aug 27 542 548