中国物理B ›› 2022, Vol. 31 ›› Issue (1): 18701-018701.doi: 10.1088/1674-1056/ac0baa
Social bots and mass media manipulated public opinion through dual opinion climate
Chun Cheng(程纯)1,3, Yun Luo(罗云)2,3, Chang-bin Yu(于长斌)3, and Wei-ping Ding(丁卫平)1,†
- 1 School of Information Science and Technology, Nantong University, Nantong 226019, China;
2 School of Computer Science and Technology, Zhejiang University, Hangzhou 310024, China;
3 School of Engineering, Westlake University, Hangzhou 310024, China
Social bots and mass media manipulated public opinion through dual opinion climate
Chun Cheng(程纯)1,3, Yun Luo(罗云)2,3, Chang-bin Yu(于长斌)3, and Wei-ping Ding(丁卫平)1,†
- 1 School of Information Science and Technology, Nantong University, Nantong 226019, China;
2 School of Computer Science and Technology, Zhejiang University, Hangzhou 310024, China;
3 School of Engineering, Westlake University, Hangzhou 310024, China
摘要： Opinion dynamics models based on the multi-agent method commonly assume that interactions between individuals in a social network result in changes in their opinions. However, formation of public opinion in a social network is a macroscopic statistical result of opinions of all expressive individuals (corresponding to silent individuals). Therefore, public opinion can be manipulated not only by changing individuals' opinions, but also by changing their states of expression (or silence) which can be interpreted as the phenomenon "spiral of silence" in social psychology. Based on this theory, we establish a "dual opinion climate" model, involving social bots and mass media through a multi-agent method, to describe mechanism for manipulation of public opinion in social networks. We find that both social bots (as local variables) and mass media (as a global variable) can interfere with the formation of public opinion, cause a significant superposition effect when they act in the same direction, and inhibit each other when they act in opposite directions.
中图分类号: (Dynamics of social systems)
- 87.23.Ge