集体群体在基于偏微分方程的意见动态模型中漂移,带有有偏见的感知核心
Christian Koertje1, Hiroki Sayama1,2
1Binghamton Center of Complex Systems (CoCo), Binghamton University, Binghamton, New York 13902-6000, USA.
Physical review. E
|April 18, 2024
概括
偏见的信息收集可以导致两极分化的人口. 我们的模型表明,虽然群体可以形成,但极端偏见阻止了共识,导致集体偏向极端主义.
科学领域:
- 数学建模的数学建模
- 意见的动态 意见的动态
- 计算社会科学 计算社会科学
背景情况:
- 现代技术促进了快速,有偏见的信息收集.
- 这种现象有助于社会两极分化和极端主义.
- 了解意见动态对于社会凝聚力至关重要.
研究的目的:
- 通过部分微分方程模型来研究意见动态.
- 分析偏见信息收集对共识形成的影响.
- 在两极分化的群体中量化集体行为和群体动态.
主要方法:
- 开发了一种新的交互内核功能,用于有偏见的信息收集.
- 使用线性稳定性分析来评估共识条件.
- 进行数值模拟,观察集体行为和群体进化.
- 利用时间相关函数和距离指标 (曼哈顿,欧几里德) 来分析群体特征.
主要成果:
- 偏见的群体可以形成有凝聚力的意见群体.
- 过度偏见会破坏共识的稳定,导致一个稳定的同质混合状态.
- 数字模拟表明集体偏向极端观点的趋势.
- 量化了群体存在的特征时间尺度.
结论:
- 个人偏见可以集体驱使群体极端的观点.
- 该模型捕捉了两极分化的群体的出现和共识的丧失.
- 边界条件可以诱导域极端的模式形成,反映社会隔离.
相关概念视频
Group Polarization
34.3K
Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
34.3K
Genetic Drift
39.7K
Natural selection—probably the most well-known evolutionary mechanism—increases the prevalence of traits that enhance survival and reproduction. However, evolution does not merely propagate favorable traits, nor does it always benefit populations.
39.7K
Stereotype Content Model
14.7K
The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
14.7K
Social Proof
27.7K
Social proof is a form of persuasion based on comparison and conformity. People compare their behavior and actions to what others are doing and will change to conform to do what their peers do.
27.7K
Bias
4.2K
Bias refers to any tendency that prevents a question from being considered unprejudiced. In research, bias occurs when one outcome or answer is selected or encouraged over others in sampling or testing. Bias can occur during any research phase, including study design, data collection, analysis, and publication.
In statistics, a sampling bias is created when a sample is collected from a population, and some members of the population are not as likely to be chosen as others (remember, each member...
In statistics, a sampling bias is created when a sample is collected from a population, and some members of the population are not as likely to be chosen as others (remember, each member...
4.2K
Hindsight Biases
3.4K
Hindsight bias leads you to believe that the event you just experienced was predictable, even though it really wasn’t. In other words, you knew all along that things would turn out the way they did. Can you relate this to the phrase "Hindsight is 20/20" now?
3.4K


