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arXiv 1204.3463cs.SIphysics.soc-ph
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社会影响力对群体智慧的影响

Effects of Social Influence on the Wisdom of Crowds

Pavlin Mavrodiev, Claudio J. Tessone, Frank Schweitzer

摘要:

群体智慧是指一群人的总体预测或预测可能比群体中的大多数人更准确,有时甚至比组成群体的任何一个人都更准确的现象。本文模拟了社会影响对群体智慧的影响。我们建立了一个极简主义的个人表示布朗粒子耦合的社会影响。我们证明,该模型可以重现以前的实证研究的结果。这使我们能够得出关于社会影响的作用的更基本的结论:特别是,我们表明,社会影响对群体智慧是否具有积极或消极的净效应的问题是不明确的。相反,正是人口的初始结构,就其多样性和准确性而言,直接决定了社会影响实际上有多有益。文章进一步探讨了社会影响力促进或削弱群体智慧的情景。

英文摘要:

Wisdom of crowds refers to the phenomenon that the aggregate prediction or forecast of a group of individuals can be surprisingly more accurate than most individuals in the group, and sometimes - than any of the individuals comprising it. This article models the impact of social influence on the wisdom of crowds. We build a minimalistic representation of individuals as Brownian particles coupled by means of social influence. We demonstrate that the model can reproduce results of a previous empirical study. This allows us to draw more fundamental conclusions about the role of social influence: In particular, we show that the question of whether social influence has a positive or negative net effect on the wisdom of crowds is ill-defined. Instead, it is the starting configuration of the population, in terms of its diversity and accuracy, that directly determines how beneficial social influence actually is. The article further examines the scenarios under which social influence promotes or impairs the wisdom of crowds.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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