Stopping online hate speech is hard. New research teaches machines to find white nationalist content

Big tech companies like Facebook and Twitter have been accused of stifling free speech by removing users who violate community guidelines prohibiting hate speech. — Relaxnews

Mitigating the impact of online extremism has proven a complicated task for companies that want to protect free expression.

Social media companies have struggled to moderate hate speech and adapt to changes in how white supremacists spread their views on digital platforms. Libby Hemphill, an associate professor at the University of Michigan School of Information, believes machine learning technology might provide an answer.