16.4% of the comments on Yahoo News are "abusive," according to human screeners . Now Yahoo has devised an abuse-detecting algorithm "that can accurately identify whether online comments contain hate speech or not," reports Wired UK:The machine-learning algorithm was "trained on a million Yahoo article comments," according to the article, and Slashdot reader AmiMoJo writes "The system could help AIs avoid being tricked into making abusive comments themselves, as Microsoft's Tay twitter bot did earlier this year ."