CAJ | 학술논문

针对半结构化文本的信息抽取粒度较大，不能对抽取结果进行有效语义分析的问题，面向领域提出一种基于模式匹配的结构化信息二次抽取方法。该方法以Web文档形式呈现的半结构化文本为对象，对粗粒度抽取结果进行领域识别，根据识别结果加载相应领域词库。根据模式中各个角色的词性实现模式角色到分词序列词语的映射，从分词序列中抽取出结构化信息，为准确的语义分析提供支持。实验表明该方法能获得更准确的抽取结果。
침대반결구화문본적신식추취립도교대，불능대추취결과진행유효어의분석적문제，면향영역제출일충기우모식필배적결구화신식이차추취방법。해방법이Web문당형식정현적반결구화문본위대상，대조립도추취결과진행영역식별，근거식별결과가재상응영역사고。근거모식중각개각색적사성실현모식각색도분사서렬사어적영사，종분사서렬중추취출결구화신식，위준학적어의분석제공지지。실험표명해방법능획득경준학적추취결과。
The information extraction results extracted from the semi-structured texts are coarse-grained, which results in ineffective semantic analysis. A structured information extraction method based on pattern matching is proposed. The proposed method is targeted at the web-presented semi-structured texts, and the suitable lexicon is loaded through domain recognition of the coarse-grained extraction results. Roles are mapped to the corresponding words in the word sequence according to the part of speech of the role in the patterns. Thus, the structured information can be extracted and it provides support for the accurate semantic analysis. Experiments show more accurate extraction results can be achieved by the proposed method.