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正则表达式在网络信息监控分析系统中的应用

Application of regular expression in Web information monitoring and analysis system
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摘要 在网络信息监控系统中,利用正则表达式和HTMLparser对网页HTML代码进行递规匹配,实现了对网站的整体解析。实际应用表明,新信息从发布到抓取的时间小于5分钟,没有出现信息漏抓、不抓和重复抓取的现象。系统利用Java语言实现,准确率和遗漏率分别达到99%和0。 In web information monitoring system, a comprehensive analysis of a web site is realized by using regular expression and HTMLparser in terms of recursive matching. The actual testing shows a time efficiency of less than five minutes between news is published and scratched. Scratching omission and repetitive scratching never happens in the analysis process. The system is built in Java language and reaches a precision of 98% and omission ratio of 0.
作者 李丽莉 李娅 周琪云
机构地区 江西师范大学信息工程学院
出处 《信息技术》 2008年第4期33-34,共2页 Information Technology
基金 上海市某公司项目资助
关键词 正则表达式 网络监控 信息抓取 regular expression web monitoring information scratching
分类号 TP393 [自动化与计算机技术—计算机应用技术]
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信息技术
2008年 第4期

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