Cristos Goodrow: YouTube Algorithm

Cristos Goodrow is VP of Engineering at Google and head of Search
and Discovery at YouTube (aka YouTube Algorithm). This conversation
is part of the Artificial Intelligence podcast. If you would
like to get more information about this podcast go to
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Here's the outline of the episode. On some podcast players you
should be able to click the timestamp to jump to that time. 00:00 -
Introduction 03:26 - Life-long trajectory through YouTube 07:30 -
Discovering new ideas on YouTube 13:33 - Managing healthy
conversation 23:02 - YouTube Algorithm 38:00 - Analyzing the
content of video itself 44:38 - Clickbait thumbnails and titles
47:50 - Feeling like I'm helping the YouTube algorithm get smarter
50:14 - Personalization 51:44 - What does success look like for the
algorithm? 54:32 - Effect of YouTube on society 57:24 - Creators
59:33 - Burnout 1:03:27 - YouTube algorithm: heuristics, machine
learning, human behavior 1:08:36 - How to make a viral video?
1:10:27 - Veritasium: Why Are 96,000,000 Black Balls on This
Reservoir? 1:13:20 - Making clips from long-form podcasts 1:18:07 -
Moment-by-moment signal of viewer interest 1:20:04 - Why is video
understanding such a difficult AI problem? 1:21:54 -
Self-supervised learning on video 1:25:44 - What does YouTube look
like 10, 20, 30 years from now?