Big data as a tool for detecting (and punishing?) bullies  A
group of researchers has developed a machine learning model that
can detect tweets relating to bullying, and even identify
bullies, victims and witnesses. How the model works and what it
found In order to train their model, the researchers fed it two
sets of tweets one they had determined to be about bullying
activity and another that was not. Once the model had learned
the language identifiers of tweets relating to bullying, it was
time to turn it loose on real-world tweets. Not only did the
system start identifying a great number of tweets, but it also
discovered time patterns (they occur most frequently during the
school week) and was able to pick out who played what role in
the bullying.  August 03, 2012 August 05, 2012 GigaOM via Google
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