Facebook wants to use AI to screen content, but fairness issues remain

One of Facebook Inc.’s biggest issues in trying to stop the spread of fake news on its platform is being able to train its algorithms on good examples of truth and falsehoods.

‘Often there is not common agreement on whether something is false news or not,’ Joaquin Quinonero Candela said in a phone interview ahead of his talk at the F8 developer conference in San Jose, California. ‘At our scale, there are not enough professional fact-checkers in the world to do it.’

Facebook has been under pressure from governments and users around the world for not doing enough to check the spread of misinformation, extremist propaganda and hate speech on its platform.