Cristos Goodrow: YouTube Algorithm

About this episode

<p>Cristos Goodrow is VP of Engineering at Google and head of Search and Discovery at YouTube (aka YouTube Algorithm).</p> <p><span style="font-weight: 400;">This conversation is part of the Artificial Intelligence podcast.</span>&#160;If you would like to get more information about this podcast go to <a href="https://lexfridman.com/ai">https://lexfridman.com/ai</a> or connect with @lexfridman on <a href="https://twitter.com/lexfridman">Twitter</a>, <a href="https://www.linkedin.com/in/lexfridman/">LinkedIn</a>, <a href="https://www.facebook.com/lexfridman">Facebook</a>, <a href="https://medium.com/@lexfridman">Medium</a>, or <a href="https://www.youtube.com/lexfridman">YouTube</a> where you can watch the video versions of these conversations. If you enjoy the podcast, please rate it 5 stars on <a href="https://podcasts.apple.com/us/podcast/artificial-intelligence/id1434243584">Apple Podcasts</a>, follow on <a href="https://open.spotify.com/show/2MAi0BvDc6GTFvKFPXnkCL">Spotify</a>, or support it on <a href="https://www.patreon.com/lexfridman">Patreon</a>.</p> <p>This episode is presented by Cash App. Download it (<a href="https://apps.apple.com/us/app/cash-app/id711923939">App Store</a>, <a href="https://play.google.com/store/apps/details?id=com.squareup.cash&#38;hl=en_US">Google Play</a>), use code &#8220;LexPodcast&#8221;.&#160;</p> <p>Here&#8217;s the outline of the episode. On some podcast players you should be able to click the timestamp to jump to that time.</p> <p>00:00 &#8211; Introduction<br /> 03:26 &#8211; Life-long trajectory through YouTube<br /> 07:30 &#8211; Discovering new ideas on YouTube<br /> 13:33 &#8211; Managing healthy conversation<br /> 23:02 &#8211; YouTube Algorithm<br /> 38:00 &#8211; Analyzing the content of video itself<br /> 44:38 &#8211; Clickbait thumbnails and titles<br /> 47:50 &#8211; Feeling like I&#8217;m helping the YouTube algorithm get smarter<br /> 50:14 &#8211; Personalization<br /> 51:44 &#8211; What does success look like for the algorithm?<br /> 54:32 &#8211; Effect of YouTube on society<br /> 57:24 &#8211; Creators<br /> 59:33 &#8211; Burnout<br /> 1:03:27 &#8211; YouTube algorithm: heuristics, machine learning, human behavior<br /> 1:08:36 &#8211; How to make a viral video?<br /> 1:10:27 &#8211; Veritasium: Why Are 96,000,000 Black Balls on This Reservoir?<br /> 1:13:20 &#8211; Making clips from long-form podcasts<br /> 1:18:07 &#8211; Moment-by-moment signal of viewer interest<br /> 1:20:04 &#8211; Why is video understanding such a difficult AI problem?<br /> 1:21:54 &#8211; Self-supervised learning on video<br /> 1:25:44 &#8211; What does YouTube look like 10, 20, 30 years from now?</p>