Fig. 1: Comparison of traditional social media and short video platforms.

a Traditional social media, where users are socially organized into communities, and their social networks serve as the channel for information dissemination. b Short video platforms, where the AI-driven recommendation algorithm propagates information and virtually links users together. c Interactions on the short video platform. The recommendation algorithm first recommends appropriate videos to users, and then users decide whether to join the discussion of the recommended videos by leaving comments. Users in the discussion of the same video are regarded in the same algorithmic video community, where they can interact and communicate with each other.