网页变化检测与通知研究(CS IR)---Elva

目前大多数可用的网页都是动态的，而且变化频繁。可能有新的内容被添加到网页，现有内容也可能被更新或删除。因此，人们发现对包含有价值信息的网页变化保持警觉是非常有用的。在当前情况下，掌握这些网页的最新信息并对不同的变化保持警觉变得非常具有挑战性。变动检测和通知（CDN）系统被引入以自动执行监视过程，并在网页发生变动时通知用户。本项调查对CDN系统的不同方面进行了分类和分析，并针对每个方面使用了不同的技术。此外，调查还强调了研究领域目前面临的挑战和需要改进的领域。

原文题目：Change Detection and Notification of Webpages: A Survey

原文：Majority of the currently available webpages are dynamic in nature and are changing frequently. New content gets added to webpages and existing content gets updated or deleted. Hence, people find it useful to be alert for changes in webpages which contain information valuable to them. In the current context, keeping track of these webpages and getting alerts about different changes have become significantly challenging. Change Detection and Notification (CDN) systems were introduced to automate this monitoring process and notify users when changes occur in webpages. This survey classifies and analyzes different aspects of CDN systems and different techniques used for each aspect. Furthermore, the survey highlights the current challenges and areas of improvement present within the field of research.

原文作者：Vijini Mallawaarachchi, Lakmal Meegahapola, Roshan Alwis, Eranga Nimalarathna, Dulani Meedeniya, Sampath Jayarathna

原文地址：https://arxiv.org/abs/2004.06933