Shih-Hung Wu Tzong-Han Tsai Wen-Lian Hsu Domain Event Extraction and Representation with Domain Ontology. 33-38 2003 conf/ijcai/2003iiweb IIWeb http://www.isi.edu/info-agents/workshops/ijcai03/papers/Wu-IJCAI-03%20workshop%20REVISE%20version.pdf db/conf/ijcai/ijcai2003iiweb.html#WuTH03