基于依存树的越南语新闻事件元素抽取

摘要

为加强对越南政治、经济和文化等方面新闻事件的了解，提出一种基于依存树的越南语新闻事件元素抽取方法。分析越南语的语法特点，发现越南语最主要的特点是定语后置，其它和中文的语法结构类似，通过直接映射中文句法结构得到越南语依存树；在此基础上通过定义规则，在依存树中找到相应的句法结构，抽取句子的主语、宾语和状语。实验结果表明，该方法可以快速地定位到越南语句子的句法成分，有效地抽取出越南语新闻事件元素。%To enhance the understanding of the Vietnamese political,economic and cultural aspects of news events,a method ex-tracting Vietnamese news event element based on dependency tree was proposed.According to Vietnamese grammar characteris-tics,the facts that the main feature of Vietnamese is attributive post position and other grammatical structures are similar to Chi-nese were found,so Vietnamese dependency tree was got by directly mapping Chinese sentence structure.On this basis,by defi-ning rules,the syntactic structure in dependency tree was found,thereby extracting the subject,object and adverbial of a sen-tence.Experimental results show that this method can quickly locate the syntactic constituents of Vietnamese sentence and effec-tively extract the Vietnamese news event element.