【摘要】 以刘畊宏现象这一体育媒介事件为例，基于LDA模型的微博评论主题挖掘，对刘畊宏健身直播的基本特点、健身效应、心理效应、塑身话题、用户反馈、场景体验、“扩圈”传播等7大聚类主题进行内容分析。基于LDA模型的主题-共现词分析，厘清7大聚类主题之间的勾连关系，形成了以周杰伦“回忆杀”为场景建构的主线，以“毽子操”创编和“亲情路线”为辅的场景定位，凸显了体育媒介事件中场景建构的重要作用。基于刘畊宏现象的实证研究，佐证了互联网时代以场景建构为中心的新变化。更多还原

【Abstract】 Using the Liu Genghong phenomenon as a case study, this paper utilizes the LDA model to analyze seven main themes. These themes include the fundamental characteristics of Liu Genghong’s phenomenon, its impact on fitness, psychology, body shaping, user feedback, scene experience, and "circle expansion" communication. By employing a topic-co-occurrence analysis within the LDA model, this study establishes the interconnectedness among these seven themes, thereby creating a framework centered around Jay Chou’s "a blast from the past" concept in scene construction. The scene positioning, supplemented by the creation of the "shuttlecock exercise" and the "family route, " highlights the critical role of scene construction in sports media events. Based on the empirical research of Liu Genghong’s phenomenon, this paper proves the new changes centered on scene construction in the Internet era.更多还原