CAJ | 학술논문

目前大部分的信息抽取方法都是针对主题信息块的提取,没有进一步深入到各个单独主题信息的抽取.针对这一问题,提出了一种基于启发式规则的网页主题信息精确定位方法.首先针对各个单独的主题,分析其多方面的特征,制定出对应的启发式规则;然后利用不同的规则对定位主题重要度不同的这一特点,得到启发式规则的权值矩阵;最后利用基于启发式规则的定位算法精确定位各个主题.将该方法用于网页主题信息抽取系统中,抽取系统能够有效地对各个单独的主题进行定位和抽取.实验结果表明,该方法具有很好的有效性和准确性.
목전대부분적신식추취방법도시침대주제신식괴적제취,몰유진일보심입도각개단독주제신식적추취.침대저일문제,제출료일충기우계발식규칙적망혈주제신식정학정위방법.수선침대각개단독적주제,분석기다방면적특정,제정출대응적계발식규칙;연후이용불동적규칙대정위주제중요도불동적저일특점,득도계발식규칙적권치구진;최후이용기우계발식규칙적정위산법정학정위각개주제.장해방법용우망혈주제신식추취계통중,추취계통능구유효지대각개단독적주제진행정위화추취.실험결과표명,해방법구유흔호적유효성화준학성.
At present,most of information extraction methods aim at the extraction of subject information block,not further penetrate into the extraction of each independent subject information.To solve this problem,this article proposed an approach of pinpointing subject information in Web pages based on heuristic rules.Firstly,for each independent subject,it analyzed its various characteristic,and formulated corresponding heuristic rules.Then,it obtained weight matrix of heuristic rules by using the feature that different rules had different importance to locate subject.Finally,according to localization algorithm of heuristic rules,it pinpointed each subject.The method has been applied to an automatic extraction system,and the experimental result shows the effectiveness and accuracy of the method.