Decision cascades in social networks

How do people in a social network behave? How are opinions, decisions and behaviors of individuals influenced by their online networks? Can the application of math help answer these questions?

'Emotional contagion' sweeps Facebook

When it hasn't been your day – your week, your month, or even your year – it might be time to turn to Facebook friends for a little positive reinforcement. According to a new study by social scientists at Cornell, the ...

Extracting useful scientific information from social media

In the second it takes to 'like' this article, 6,000 tweets, 5,000 profile updates, 4,000 photos and 500 blogs will have been posted on multiple social media platforms. As that second extends to a minute, a day and even a ...

Why yawning is contagious in bonobos

Being socially close to another bonobo is more likely to make bonobo apes yawn in response to the other's yawns, according to research published November 14 in the open access journal PLOS ONE by Elisabetta Palagi and Elisa ...

Online mirrors: Video bloggers and viewers share emotions

An amusing commercial shows someone having a bad day, and how that person's mood affects each person down the line, with more bad moods. This emotional "contagion" may be a real-world phenomenon, and it appears that what ...

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