Abstract
The majority of 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 that contain information that is of value 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 to 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.
Original language | English |
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Article number | 15 |
Number of pages | 35 |
Journal | ACM Computing Surveys |
Volume | 53 |
Issue number | 1 |
Early online date | Feb 2020 |
DOIs | |
Publication status | Published - Jan 2021 |
Externally published | Yes |
Keywords
- Change detection
- Change notification
- Distributed digital collections
- Scheduling
- Search engine
- Web search
- Webpages
- Websites