On-line new event detection and tracking
Proceedings of the 21st annual international ACM SIGIR conference on Research and development in information retrieval
Event detection from online news documents for supporting environmental scanning
Decision Support Systems - Special issue: Knowledge management technique
Information diffusion through blogspace
Proceedings of the 13th international conference on World Wide Web
A probabilistic model for retrospective news event detection
Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval
Usage patterns of collaborative tagging systems
Journal of Information Science
CHI '06 Extended Abstracts on Human Factors in Computing Systems
Harvesting social knowledge from folksonomies
Proceedings of the seventeenth conference on Hypertext and hypermedia
Are raw RSS feeds suitable for broad issue scanning? A science concern case study
Journal of the American Society for Information Science and Technology
tagging, communities, vocabulary, evolution
CSCW '06 Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work
Tagging video: conventions and strategies of the YouTube community
Proceedings of the 7th ACM/IEEE-CS joint conference on Digital libraries
The use of topic evolution to help users browse and find answers in news video corpus
Proceedings of the 15th international conference on Multimedia
Evaluating tagging behavior in social bookmarking systems: metrics and design heuristics
Proceedings of the 2007 international ACM conference on Supporting group work
An adaptive threshold framework for event detection using HMM-based life profiles
ACM Transactions on Information Systems (TOIS)
Discovering event evolution graphs from news corpora
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Why We Share: A Study of Motivations for Mobile Media Sharing
AMT '09 Proceedings of the 5th International Conference on Active Media Technology
Detecting News Event from a Citizen Journalism Website Using Tags
AMT '09 Proceedings of the 5th International Conference on Active Media Technology
Learning similarity metrics for event identification in social media
Proceedings of the third ACM international conference on Web search and data mining
New event detection and topic tracking in Turkish
Journal of the American Society for Information Science and Technology
Earthquake shakes Twitter users: real-time event detection by social sensors
Proceedings of the 19th international conference on World wide web
Power Without Responsibility: Press, Broadcasting and the Internet in Britain
Power Without Responsibility: Press, Broadcasting and the Internet in Britain
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The objective of this study was to investigate the use of tags in iReport to detect breaking news in terms of coverage and immediacy. Coverage refers to the extent to which news reported in mainstream media can also be detected in iReport, while immediacy refers to the promptness of news reported in mainstream media vis-脙 -vis those detected in iReport. A total of 10 ground truth events were identified from mainstream media between 1 April 2008 and 31 December 2008. Additionally, 481,455 tags from 118,545 postings were drawn from iReport in the same period. Relative frequencies of the top 200 most frequently-used tags were analysed to check for spikes and bursts. Based on the results, four main findings emerged. First, the performance of using spikes and bursts to detect news events was found to be comparable. Next, news events detected via spikes and bursts were found to lag ranging from a few days to more than a week compared to the dates reported by mainstream media. Third, news events deemed to be significant by professional journalists did not always attract a high level of interest from iReport contributors. Finally, even though citizen journalism transcends national boundaries via the internet, news posted to iReport seemed to show a proclivity towards local context.