计算机与现代化Issue(7)：116-119,4.DOI:10.3969/j.issn.1006-2475.2015.07.026
一种基于介词用法的灾难事件信息抽取方法
A Disaster Event Information Extraction Method Based on Preposition’ s Usages
摘要
Abstract
To improve the efficiency of the event information extraction, through the recognition of preposition’ s usages in text, an approach based on preposition’ s usages and Conditional Random Fields( CRFs) is proposed for event information extracting, and the paper completes the coding of extraction system, in order to achieve the better extraction result. “People’ s Daily” is used as experiment corpus, the approach achieves a better performance, the precision rate reaches 90. 33%, increases 9. 14% than the method without preposition’ s usage.关键词
信息抽取/介词用法/灾难事件/事件元素/条件随机场Key words
information extraction/preposition’ s usages/disaster event/event element/CRFs分类
信息技术与安全科学引用本文复制引用
贾遂民,张玉,张腾飞..一种基于介词用法的灾难事件信息抽取方法[J].计算机与现代化,2015,(7):116-119,4.基金项目
中国博士后科学基金资助项目(2012M510110) （2012M510110）
河南省科技攻关项目(112102110153) （112102110153）
