关键词: 人工智能深度伪造视频传播；四方演化博弈；多主体协同治理；治理机制；信息生态系统

Abstract: The rapid advancement of generative AI technology has given rise to deepfake videos, which pose a series of security risks. Effectively regulating the proliferation of deepfake videos has become a critical issue concerning information security. This paper is based on information ecosystem theory and constructs a four-party game model involving the government, video platforms, video disseminators, and video recipients, followed by numerical simulation analysis. The study found that: the government and video platforms should break through linear regulatory thinking to promote collaborative governance, rather than relying on a single external force for governance; Increasing the severity of rewards and penalties for governments and video platforms can effectively promote the governance of deepfake video dissemination, with video platforms offering rewards that have an effective threshold; Reducing the excess profit margins of video platforms, video disseminators, and video recipients can promote collaborative governance among the four parties, with government behavior remaining largely unaffected. This indicates that the government should fully leverage its role as a facilitator to promote the formation of a more rational market mechanism.

Key words: artificial intelligence deepfake video dissemination; quadrilateral evolutionary game; multi-agent collaborative governance; governance mechanism; information ecosystem