社交媒体中迷因质量偏向竞争动态的分析研究
Analytical study of quality-biased competition dynamics for memes in social media
摘要：
通过在线社交平台传播的新闻、模因和其他信息对我们的现代社会产生了越来越大的影响，带来了巨大的后果，这可能是有益的，但也是灾难性的。在这项工作中，我们考虑了最近推出的社交媒体中的信息传播模型，明确考虑到大量不同质量的项目的竞争。我们将模因动态映射到一个一维的扩散过程中，我们解析求解，推导出个体模因的生命周期和流行度分布。我们还提出了一个平均场类型的方法，再现的平均平稳性能的动态。通过这种方式，我们可以理解和控制模型中不同成分的作用，为包含更多更真实的功能开辟道路。
英文摘要：
The spreading of news, memes and other pieces of information occurring via online social platforms has a strong and growing impact on our modern societies, with enormous consequences, that may be beneficial but also catastrophic. In this work we consider a recently introduced model for information diffusion in social media taking explicitly into account the competition of a large number of items of diverse quality. We map the meme dynamics onto a one-dimensional diffusion process that we solve analytically, deriving the lifetime and popularity distributions of individual memes. We also present a mean-field type of approach that reproduces the average stationary properties of the dynamics. In this way we understand and control the role of the different ingredients of the model, opening the path for the inclusion of additional, more realistic, features.
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