A Chinese-made propaganda video about the Hong Kong protests went viral, apparently thanks to YouTube’s algorithm. The video—called “Who’s behind Hong Kong protests?”—argues that US agents are stirring protests in Hong Kong, and has more than half a million views on YouTube. It was created by China’s state broadcaster, China Global Television Network.
On August 24th, YouTube recommended it six times more than the average video when users searched for “Hong Kong protestors,” according to AlgoTransparency, making it one of the most-recommended videos on that subject. The most-viewed video on Hong Kong protests by the Wall Street Journal, BBC, and New York Times all had fewer views as of October 31st 2019.
The Chinese government has repeatedly claimed that the US is behind protestors, though it has failed to present any evidence. Attempts to present Hong Kong protests as an American uprising often involve outright falsehoods, such as Chinese media reports that a toy weapon was a US army grenade launcher.
AlgoTransparency, created by former YouTube engineer Guillaume Chaslot, analyzes videos recommended on thousands of channels daily. The data is based on blank profiles; as YouTube recommends videos based on users’ history, different individuals may have different recommendations. Overall, YouTube’s algorithm was created to optimize for watch time which, Chaslot has shown, often leads to YouTube recommending more extreme videos in a bid to capture attention. “You can go from more radical video to more radical video,” says Chaslot. “There’s a rabbit-hole effect.”
YouTube said it disagreed with Algotransparency’s methodology, data, and conclusions, and was unable to reproduce Algotransparency’s results. “The Algotransparency tool was created outside of YouTube and does not accurately reflect how YouTube’s recommendations work, or how users watch and interact with YouTube,” said YouTube spokesman Farshad Shadloo. “We’ve designed our systems to help ensure that content from more authoritative sources is surfaced prominently in search results and watch next recommendations in certain contexts, including when a viewer is watching news related content on YouTube.”
The company released the same statement when Chaslot exposed similar behavior previously; in April he showed that YouTube recommended a Russia Today video on the Mueller report more than 400,000 times. YouTube algorithm’s goal of maximizing watch time makes it vulnerable to election interference, says Chaslot: “We have no guarantee that it cannot be gamed.”
Chaslot said that when he worked at Google, prior to 2013, his YouTube colleagues did not prioritize creating an algorithm that was difficult to abuse. Recently, Chaslot has been critical of his former employer for failing to release data on recommendations; he discussed some of these concerns at MozFest, hosted by Mozilla, this month. The algorithm has massive impact: 70% of videos watched on YouTube are recommended by AI. Though YouTube said it would stop recommending conspiracy theories earlier this year, Chaslot says issues with the algorithm recommending extremist content remain. “There was no radical change,” he adds.
Let us know if you know more.
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October 31, 2019 at 11:41AM
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Did YouTube help China’s anti-Hong Kong propaganda go viral? - Quartz
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