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Facebook artificial intelligence: Algorithms that spot warning signs in users' posts and the comments

        The social network has developed algorithms that spot warning signs in users' posts and the comments their friends leave in response.
After confirmation by Facebook's human review team, the company contacts those thought to be at risk of self-harm to suggest ways they can seek help.
A suicide helpline chief said the move was "not just helpful but critical".
The tool is being tested only in the US at present.
It marks the first use of AI technology to review messages on the network since founder Mark Zuckerberg announced last month that he also hoped to use algorithms to identify posts by terrorists, among other concerning content.
Facebook also announced new ways to tackle suicidal behaviour on its Facebook Live broadcast tool and has partnered with several US mental health organisations to let vulnerable users contact them via its Messenger platform.
Pattern recognition
Facebook has offered advice to users thought to be at risk of suicide for years, but until now it had relied on other users to bring the matter to its attention by clicking on a post's report button.


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