基于DOM的Web信息抽取规则的构造与实现

Rules Construction and Implementation in DOM-based Web Information Extraction

为了实现对Web信息的查询、重构和再利用,人们采用了Web信息抽取技术.本文主要讨论基于DOM的Web信息抽取,研究如何构造抽取规则,才能提高信息抽取的准确度、提高抽取规则的适应能力,并给出了抽取规则的生成过程.

Web information extraction techniques were applied to Web information query, reconstruction and reuse. In this paper, we mainly discussed DOM-based Web information extraction, studied how to construct extraction rules to improve precision ratio of extraction and adaptation of extraction rules, and the rules＇ generation procedure is also presented.