首页 | 官方网站   微博 | 高级检索  
     

基于依存分析的离合触发词合法分离形式判定
引用本文:肖 升,李勇帆,何炎祥.基于依存分析的离合触发词合法分离形式判定[J].计算机工程与应用,2014(10):11-17.
作者姓名:肖 升  李勇帆  何炎祥
作者单位:[1]武汉大学计算机学院,武汉430079 [2]湖南第一师范学院信息科学与工程系,长沙410205
基金项目:教育部人文社会科学规划基金项目(No.12YJAZH065);湖南省高校科技创新团队支持计划资助项目(湘教通[2010]212号)。
摘    要:离合触发词的构词语素可能因插入、颠倒、省略而产生多种合法分离形式,这些分离形式与原形一样也能表征事件。为完整抽取事件,提出一种基于依存分析的离合触发词合法分离形式判定算法。该方法首先借助依存分析考察离合触发词合法分离形式在句中所受的依存约束,然后将这些约束转化为可计算的判定规则,最后利用判定规则对离合触发词的合法分离形式进行判定。实验结果显示,排除稀疏数据前,此方法的正确率、召回率、F值分别为82.2%、88.3%、85.1%;排除稀疏数据后,正确率、召回率、F值提升到82.4%、88.7%、85.4%。方法已基本具备应用潜质。

关 键 词:离合词  离合触发词  分离形式  依存分析  事件抽取

Decision on legal separation form of separable triggers based on depen- dency parsing
XIAO Sheng,LI Yongfan,HE Yanxiang.Decision on legal separation form of separable triggers based on depen- dency parsing[J].Computer Engineering and Applications,2014(10):11-17.
Authors:XIAO Sheng  LI Yongfan  HE Yanxiang
Affiliation:1.School of Computer Science, Wuhan University, Wuhan 430079, China ;2.Department of Information Science and Engineering, Hunan First Normal College, Changsha 410205, China)
Abstract:The morphemes of separable triggers may produce a variety of legal separation form due to the insertion, invertion, ellipsis, and the legal separation form can also characterize events as the primary form of separable triggers. A decision algorithm of legal separation form of separable triggers based on dependency parsing is proposed, for the purpose of complete extraction of events. Firstly some dependency constraints of the legal separation form of separable triggers are found with the help of dependency parsing. Then some computable decision rules are extracted from those dependency constraints. Finally decision on the legal separation form of separable triggers are executed using decision rules. Experimental results show that the precision, recall, F-Measure of this approach is 82.2%, 88.3%, 85.1%;and the precision, recall, F-Measure of this approach is 82.4%, 88.7%, 85.4%exclusion of sparse data, so the approach has the application potential basically.
Keywords:separable verb  separable trigger  separation form  dependency parsing  event extraction
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号