Suppose that a person participates in a discussion where other people wrote troll comments. If that person goes on to participate in an unrelated discussion, they are more likely to troll in that discussion too. In fact, these troll comments can add up. The more troll comments in a discussion, the more likely that future participants will also troll the discussion. Using machine learning algorithms, we were able to forecast whether a person was going to troll about 80 percent of the time.

Source: CNN March 04, 2017 18:45 UTC