4min chapter

Lex Fridman Podcast cover image

Cristos Goodrow: YouTube Algorithm

Lex Fridman Podcast

CHAPTER

The Measure of Quality on YouTube

YouTube has been trying to get at better and better measures of quality or satisfaction or enrichment since I came to YouTube. We moved from views to thinking about the amount of time people spend watching it with the premise that like you know in some sense the time that someone spends watching a video is related to the value that they get from that video. So we get feedback data from those surveys and then use that in the machine learning system to try to not just predict what you're gonna click on right now but what when we ask you tomorrow you'll give four or five stars to.

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