An’s talk aims to reveal patterns and potential driving forces behind the online diffusion of ideas. We first extend a few traditional metrics to measure spatial patterns at discrete times and space-time trajectories (e.g., LISA time paths). Second, we use the "hazard" concept to depict and quantify the risk of an area being dominated or substantially influenced by certain ideas. Survival analysis will be used to explore what factors may affect the spread of ideas over space and time.
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