• Researchers studied the similarities and differences between 3 models (simulated SIR model, observed SIR model based on Covid-19 cases, and observed information cascades on Twitter) to compare how Covid-19 information is spread
• Want to measure similarities and differences between Twitter and individual diffusion
• SIR is a compartmental model used to study how information is passed on and spread through social networks

Research questions

• What are the diffusion patterns of COVID-19 virus spread, based on SIRsim and SIRemp?
• What are the diffusion patterns of information cascades on Twitter (INFOcas), with respect to retweets, quote tweets, and replies?
• What are the major differences in diffusion patterns between SIRsim, SIRemp, and INFOcas?