双重机制影响下短视频真伪知识传播模型研究

Research on the Propagation Model of Short Video True Knowledge and False Knowledge under the Influence of Dual Mechanisms

知识经济时代,短视频的快速发展使得在短视频中传播知识受到人们的广泛关注,但是随之而来的伪知识泛滥与真知识传播效率低等问题愈演愈烈,如何使知识在短视频中进行良好、有效的传播成为学界日益关心的问题。本文首先基于真伪知识的传播特点,考虑意见领袖和平台审核双重机制对知识传播的影响,结合经典的SEIR模型,提出一种新的真知识与伪知识共同传播的模型,然后给出对应模型的平均场方程并推导出模型的基本再生数。最后,使用Matlab对模型进行数值模拟,并结合真实案例以验证模型的有效性。研究发现,意见领袖在较少情景会使伪知识传播开,大部分情景扼制伪知识传播并能提高真知识传播效率;平台审核机制能够间接提高真知识传播效率,对扼制伪知识传播具有较大作用。In the era of the knowledge economy, the rapid development of short videos has made the spread of knowledge in them widely paid attention to by people. However, the resulting flood of false knowledge and the low efficiency of true knowledge communication have become increasingly intense. How to ensure the good and effective spread of knowledge in short videos has become an increasingly concerning issue in academic circles. This paper, firstly based on the propagation characteristics of true and false knowledge, considers the influence of opinion leaders and the platform audit dual mechanism on knowledge dissemination. By combining the classic SEIR model, it proposes a new model, then provides the mean field equation and derives the basic reproduction number of the model. Finally, using Matlab for numerical simulation and combining real cases, it verifies the effectiveness of the model. The study has found that opinion leaders will spread pseudo knowledge in fewer situations, and in most situations, they will curb the spread of pseudo knowledge and improve the efficiency of the spread of true knowledge. The platform audit mechanism can indirectly improve the efficiency of the dissemination of true knowledge and play a great role in curbing the dissemination of false knowledge.