A BAYESIAN MODEL OF GROUP DECISION-MAKING

被引：0

作者：

Wibig, Tadeusz ^{[1
,2
]}

Karbowiak, Michal ^{[1
]}

Jaszczyk, Michal ^{[1
]}

机构：

[1] Univ Lodz, Fac Phys & Appl Informat, Ul Pomorska 149-153, PL-90236 Lodz, Poland

[2] Natl Ctr Nucl Res, Div Astrophys, Lodz, Poland

来源：

OPERATIONS RESEARCH AND DECISIONS | 2016年 / 26卷 / 01期

关键词：

conformity; decision-making; Bayesian inference; groupthink; cooperation;

D O I：

10.5277/ord160106

中图分类号：

C93 [管理学]; O22 [运筹学];

学科分类号：

070105 ; 12 ; 1201 ; 1202 ; 120202 ;

摘要：

A change in the opinion of a group, treated as a network of communicating agents, caused by the accumulation of new information is expected to depend on communication within the group, cooperation and, possibly, a kind of conformity mechanism. We have developed a mathematical model of the creation of a group decision, including this effect. This is based on a Bayesian description of inference and can be used for both conscious and inattentive acts. This model can be used to study the effect of whether a leader exists or not and other group inhomogeneities, as well as establishing the (statistical) significance and quality of a group decision. The proposed evolution equations explain in a straightforward, analytical way some general properties of the general phenomenon of conformity (groupthink). To illustrate this theoretical idea in practice, we created an information technology (IT) tool to study the effect of conformity in a small group. As an example, we present results of an experiment performed using a network of students' tablets, which could not only measure group pressure, but also conduct and control collaborative thinking in the group.

引用

页码：95 / 110

页数：16

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