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Using tweets to predict real-time food shortages

The sentiments and emotions expressed in tweets on Twitter can be used in real time to assess where supply chain disruptions due to a pandemic, war or natural disaster may lead to food shortages, according to researchers ...

Covert and overt political signaling online

In the 1970s, a handkerchief peeking from a man's back pocket was a useful way of signaling his gayness to other gay men—while keeping his sexual identity secret from everyone else, who were unlikely to know the hanky's ...

Angelenos versus New Yorkers: What do they talk about online?

A team of computer scientists at the USC Viterbi School of Engineering set out to develop new tools automate and organize social science data. What did they use as their data sets? Twitter posts from the coastal capitals, ...

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