@InProceedings{Xu-EtAl:2009:PACLIC20091,
author    = {Hongzhi Xu and Changjian Hu and Guoyang Shen},
title     = {Discovery of Dependency Tree Patterns for Relation Extraction},
booktitle = {Proceedings of the 23rd Pacific Asia Conference on Language, Information and Computation},
year      = {2009},
month     = {December},
address   = {Hong Kong},
publisher = {City University of Hong Kong},
pages     = {851--858},
url       = {http://www.aclweb.org/anthology/Y09-2050}
}