Abstract
Under the situation that terrorism events occur more and more frequency throughout the world, improving the response capability of social security incidents has become an important aspect to test governments govern ability. Visual analysis has become an important method of event analysing for its advantage of intuitive and effective. To analyse events’ spatio-temporal distribution characteristics, correlations among event items and the development trend, terrorism event’s spatio-temporal characteristics are discussed. Suitable event data table structure based on “5W” theory is designed. Then, six types of visual analysis are purposed, and how to use thematic map and statistical charts to realize visual analysis on terrorism events is studied. Finally, experiments have been carried out by using the data provided by Global Terrorism Database, and the results of experiments proves the availability of the methods.
Highlights
According to statistical data from Global Terrorism Database (GTD), worldwide terrorism events has begun to show the trend of more and more frequent since 2004, and the number of occurrences each year increases rapidly
Visual analysis uses statistical thematic maps and charts to convert data into graphs or diagrams to show the characteristics of data intuitively
This paper uses the data from Global Terrorism Database (GTD), discussed the spatio-temporal characteristics of terrorism events, designed the structure of event data table that based on 5W theory, and researched and analysed the application category of different kinds of thematic maps and statistical charts which are event-oriented
Summary
According to statistical data from Global Terrorism Database (GTD), worldwide terrorism events has begun to show the trend of more and more frequent since 2004, and the number of occurrences each year increases rapidly. Some international community has specialized agencies and researchers studying on terrorism event data organization and analysis Such as, the Global Terrorism Database (GTD, 2015) and the Rand Corporation (Rand, 2015), these institutions have large-scale event database of normal structure and relatively complete content, but analysis spatio-temporal distribution characteristics of terrorism events and terrorism organizations as well, their statistic charts and analysis reports are shared publicly. This paper uses the data from Global Terrorism Database (GTD), discussed the spatio-temporal characteristics of terrorism events, designed the structure of event data table that based on 5W theory, and researched and analysed the application category of different kinds of thematic maps and statistical charts which are event-oriented. Researched and analysed the applicable area of different types of thematic maps and thematic diagrams for terrorism event visual analysis
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