유튜브 추천 알고리즘: 더 긴 콘텐츠를 추천
유튜브 추천 알고리즘: 더 긴 콘텐츠를 추천 (15분 이내)
The recommendation engine similarly recommends ever-more -popular videos. The initial starting videos in these random walks averaged just over 8 million views. But the first videos recommended by the site average nearly 30 million views. And by the final step, these videos have an average of more than 40 million views.
This study of YouTube’s recommendation algorithm also reinforces the survey findings about the prominence of children’s content on YouTube. All told, 134 unique videos were recommended more than 100 times during this analysis. And of the 50 individual videos that were encountered most frequently, 11 of them – or about a fifth of the most-recommended videos – were determined by researchers to be oriented toward children, based on their content. Indeed, an animated video for children was the single most recommended video in this analysis.
The findings in this report are based on two different sources. The insights about YouTube users’ attitudes and experiences on the platform are taken from a nationally representative survey of 4,594 U.S. adults conducted May 29-June 11, 2018. The findings about YouTube recommendations are drawn from an analysis of more than 170,000 “random walks” through the platform’s video recommendations for videos posted by high-subscriber YouTube channels, performed July 18-Aug. 29, 2018, using the site’s public API.
Many Turn to YouTube for Children's Content, News, How-To Lessons
An analysis of Youtube videos suggested by the site's recommendation engine finds that users are directed toward progressively longer and more popular content
www.pewinternet.org
YouTube tends to recommend progressively longer and more popular content to users. This analysis illustrates how YouTube’s recommendation engine encourages users to engage with progressively longer content. The videos encountered in the first step of these random walks (that is, the initial starting videos chosen at random) collectively averaged 9 minutes and 31 seconds in length. But the first videos selected by the recommendation engine were nearly three minutes longer on average. Average video length then progressively increased for each subsequent recommendation. By the fifth and final step in these walks, these videos were on average nearly 15 minutes long.