Facebook now uses technology to help detect instances of cyberbullying before it gets out of hand. I heard this report on CNN last week, and the Facebook spokesman described their detection techniques as "background technology that I can't really talk about."

We don't know for certain what techniques Facebook employs for this problem. But Richard Foley does a great job of describing what could be done using text analytics.

Richard's explanation is a nice complement to the series of posts from Jim Cox about how text mining determines topics.