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AbstractAs witnessed over the last year, immunity emerged as one of most highly debated topics in the current Covid-19 pandemic. Countries around the globe have been debating whether herd immunity or lockdown is the best response, as the race continues for the developme...

Successful navigation of the Covid-19 pandemic is predicated on public cooperation with safety measures and appropriate perception of risk, in which emotion and attention play important roles. Signatures of public emotion and attention are present in social media data, ...

In this paper, we describe our approach in the shared task: COVID-19 event extraction from Twitter. The objective of this task is to extract answers from COVID-related tweets to a set of predefined slot-filling questions. Our approach treats the event extraction task as...

With the spread and development of new epidemics, it is of great reference value to identify the changing trends of epidemics in public emotions We designed and implemented the COVID-19 public opinion monitoring system based on time series thermal new word mining A new ...

Doctors and nurses in these weeks are busy in the trenches, fighting against a new invisible enemy: Covid-19. Cities are locked down and civilians are besieged in their own homes, to prevent the spreading of the virus. War-related terminology is commonly used to frame t...