Journal
MULTIMEDIA TOOLS AND APPLICATIONS
Volume 76, Issue 9, Pages 11567-11584Publisher
SPRINGER
DOI: 10.1007/s11042-015-2731-1
Keywords
Crowdsourcing; Socialmedia analysis; Urban emergency events
Categories
Funding
- National Science and Technology Major Project [2013ZX01033002-003]
- National High Technology Research and Development Program of China (863 Program) [2013AA014601, 2013AA014603]
- National Key Technology Support Program [2012BAH07B01]
- National Science Foundation of China [61300202, 61300028]
- Ministry of Public Security [2014JSYJB009]
- China Postdoctoral Science Foundation [2014 M560085]
- Shanghai Municipal Commission of Economy and Information [12GA-19]
- Science Foundation of Shanghai [13ZR1452900]
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An urban emergency event requires an immediate reaction or assistance for an emergency situation. With the popularity of the World Wide Web, the internet is becoming a major information provider and disseminator of emergency events and this is due to its real-time, open, and dynamic features. However, faced with the huge, disordered and continuous nature of web resources, it is impossible for people to efficiently recognize, collect and organize these events. In this paper, a crowdsourcing based burst computation algorithm of an urban emergency event is developed in order to convey information about the event clearly and to help particular social groups or governments to process events effectively. A definition of an urban emergency event is firstly introduced. This serves as the foundation for using web resources to compute the burst power of events on the web. Secondly, the different temporal features of web events are developed to provide the basic information for the proposed computation algorithm. Moreover, the burst power is presented to integrate the above temporal features of an event. Empirical experiments on real datasets show that the burst power can be used to analyze events.
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