It discovered a video through a YouTube search, and then followed a chain of YouTube–recommended titles appearing “up next”.Ĭhaslot programmed his software to obtain the initial videos through YouTube searches for either “Trump” or “Clinton”, alternating between the two to ensure they were each searched 50% of the time. During the election, it acted as a YouTube user might have if she were interested in either of the two main presidential candidates. The program simulates the behaviour of a YouTube user. He has used his software to detect YouTube recommendations across a range of topics and publishes the results on his website,. The ex-Google engineer said his method of extracting data from the video-sharing site could not provide a comprehensive or perfectly representative sample of videos that were being recommended. The computer program written by Guillaume Chaslot overcomes that obstacle to force some degree of transparency. By putting a wall around its data, YouTube, which is owned by Google, protects itself from scrutiny.
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