The YouTube Algorithm

The video discusses the evolution of YouTube's algorithm from its inception in 2005 to the present day. Initially, YouTube relied on views as a success metric, but this shifted to more complex metrics like watch time and click-through rates. The introduction of a deep neural network model aimed to increase user engagement but led to content silos. The current REINFORCE model uses deep reinforcement learning to diversify recommendations and keep users engaged longer. However, it sometimes suggests extreme content, raising concerns. The video highlights ongoing changes and challenges in YouTube's recommendation system.

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