摘要
网页信息的更新是网络一个非常重要的性质。同网络的其他应用类似,随着WWW信息内容更新的不断加快,如何有效地跟踪特定网站和页面的更新情况日渐成为人们关心的课题。论文讨论一个自适应的网页信息跟踪系统ChangeSpider,研究其体系结构、关键技术等方面的内容。实验表明ChangeSpider能够有效地跟踪网页的信息变化,及时地将变化的内容提交给用户。
The information changing of web pages is a very important property of the web.With the fast changing content on the web,similar to some other web,how to trace the update of the specified pages effectively is very important. In this paper,an adaptive tracing system for the web is discussed together with its architecture,key technologies etc. With the results of experiments,we can see that the ChangeSpider can trace the web changes effectively as well as notify the changes to the user in time.
出处
《计算机工程与应用》
CSCD
北大核心
2003年第34期160-164,共5页
Computer Engineering and Applications
基金
国家自然科学基金(编号:NFSC60131160743)
关键词
信息更新
更新频率信息采集
信息分发
Information Changing,Update Frequency,Information Gathering,Information Delivery
