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Proactive policing

New research suggests it is possible to identify online troublemakers before

they strike

Apr 30th 2015

HECKLERS have long been a problem for politicians and stand-up comedians, but

the rise of the internet has amplified their voices. Trolls, as these online

miscreants are commonly called, often abuse other users and can cause chaos.

Company websites and social media platforms are finding that they are spending

ever more resources on tackling such abuse. Dick Costolo, the chief executive

of Twitter, the most popular microblogging platform, has previously admitted

that his site's inability to deal with puckish users was embarrassing . It

recently introduced a new policy that hopes to starve trolls of oxygen:

messages that contain abusive language; accounts set up specifically to target

individuals; and threats of violence are now all banned.

Though this seems like a welcome response, as a strategy it is limited, being

only a reactive posture. A new paper suggests that it might be possible to

identify potential trolls before they do their worst. Researchers at Stanford

and Cornell have pulled out patterns of behaviour exhibited by the

approximately one in 40 users of three news sites CNN, Breitbart and IGN who

were subsequently banned for abuse. These include trolls unwillingness to

mould their conversation to the slang of an online community; their propensity

to swear; and the volume of contributions they make to a debate. Making an

algorithm of these patterns, the researchers believe they can be 80% confident

of identifying those likely to cause trouble within five posts online.

Such an approach, if exploited commercially, could save online firms some

serious money. Websites are having to spend an increasing proportion of their

budgets on moderating online posts and comments, says Richard Millington at

Feverbee, a consultancy that specialises in this area. Though companies charge

less than a cent to remove the nastiest of comments, the scale of some online

communities can cause costs to add up. The Huffington Post, a popular site, was

once forced to outsource its moderation of nearly 500,000 comments a day to a

team of 28 people.

For years the received advice for dealing with troublemakers on the internet

was a simple motto: don t feed the trolls . An increasing number of people,

and the preponderance of more virulent abuse, have rendered that advice less

helpful. For instance, death threats posted against women writers, such

Caroline Criado-Perez in Britain (whose tormentors were sentenced to prison),

are sadly becoming more common. But even when miscreants are eventually caught,

their comments can damage the reputations of websites and social-media

platforms, sometimes irretrievably. That is why the ability to forecast which

users are likely to become troublemakers would be so helpful. No one, after

all, deserves to have death threats delivered direct to their browsers or

inboxes.