从WEB文档中构造半结构化信息的抽取器

Extracting Semi-Structured Information from the WEB

为了对 WEB上不规则的、动态的信息按照数据库的方式集成和查询 ,采用对象交换模型 (object ex-change model,简称 OEM)建立了 WEB信息模型 .为了将页面中各个部分表示为对应的 OEM对象 ,设计了半结构化信息的抽取算法 ,并给出测试结果 .该方法可以抽取结构化和半结构化的信息 ,比现有的抽取方法通用性更强 .

In order to integrate and query irregular and dynamic information on WEB in a database like fashion, the authors use object exchange model (OEM) to construct information model of WEB in this paper. To express each component of pages as an OEM object, the authors design an algorithm which extracts semi structured data from HTML pages, and the testing results are given. This method can extract structured and semi structured data. It has better applicability than other existing methods.