计算机科学 ›› 2015, Vol. 42 ›› Issue (2): 253-255.doi: 10.11896/j.issn.1002-137X.2015.02.052
徐霞,李培峰,朱巧明
XU Xia, LI Pei-feng and ZHU Qiao-ming
摘要： 事件模板是指导事件抽取工作的依据,半监督方法下模板的准确性显得尤为重要。目前,基于双视图的“触发词-论元”模板的中文信息事件抽取系统不能有效地解决触发词一词多义的现象和模板稀疏现象。提出了一种借助论元进行触发词语义消歧的方法,并利用该方法进行模板过滤以消除无效模板的影响。另外,针对几种特殊的中文句型,根据句法结构提出了模板转换规则,从而提高了模板的适用性。在ACE2005中文语料上的测试表明,该方法可有效地提高半监督中文信息事件抽取系统的性能。
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