“But the documents show that the company relies heavily on the intervention of a small editorial team to determine what makes its ‘trending module’ headlines – the list of news topics that shows up on the side of the browser window on Facebook’s desktop version. The company backed away from a pure-algorithm approach in 2014 after criticism that it had not included enough coverage of unrest in Ferguson, Missouri, in users’ feeds.

The guidelines show human intervention – and therefore editorial decisions – at almost every stage of Facebook’s trending news operation, a team that at one time was as few as 12 people”

Source: Facebook news selection is in hands of editors not algorithms, documents show | Technology | The Guardian