This paper presents a theory and computational model of the role of emotions in group decision making. After reviewing the role of emotions in individual decision making, it describes social and psychological mechanisms by which emotional and other information is transmitted between individuals. The processes by which these mechanisms can contribute to group consensus are modeled computationall...

The homogeneous requirement of the AHP has stifled its general application and thus hindered the further development of group decision making, which is becoming increasingly popular with the multi-business corporations. In this paper, we adopted the correlation degree of individual preference vectors as the measurement of individuals similarity based on AHP vector space VAHP proposed by Zahir i...

Salem Chakhar is with the Portsmouth Business School in the Operations & Systems Management subject group. Salem Chakhar has a PhD in Computer Science from the University of Paris-Dauphine (Paris, France), an MPhil degree in Computer Science and Modelling from the High School of Management of Tunis (Tunis, Tunisia), and a degree in Computer Science from the Faculty of Economics and Management, ...

The sequential probability ratio test (SPRT) and related drift-diffusion model (DDM) are optimal for choosing between two hypotheses using the minimal (average) number of samples and relevant for modeling the decision-making process in human observers. This work extends these models to group decision making. Previous works have focused almost exclusively on group accuracy; here, we explicitly a...

This paper presents a theory and computational model of the role of emotions in group decision making. After reviewing the role of emotions in individual decision making, it describes social and psychological mechanisms by which emotional and other information is transmitted between individuals. The processes by which these mechanisms can contribute to group consensus are modeled computationall...

Multiple attribute decision analysis (MADA) problems in the situation of belief group decision making (BGDM) are a special class of decision problems, where the attribute evaluations of each decision maker (DM) are represented by belief functions. In order to solve these special problems, in this paper, TOPSIS (technique for order preference by similarity to ideal solution) model is extended by...

The need for negotiation and decision making among collaborative modelers stems from their desire to reconcile their different positions, priorities and preferences. This requires them to engage in an argumentative negotiation process so as to achieve consensus. A number of methods can be used to aggregate their judgements and priorities thus helping them to reach consensus. In this paper we sh...

Previous research shows that groupware increases the exchange of information for groups, but that the additional comments do not necessarily lead to better decisions. Lack of individual information processing and information overload have been noted as probable causes. Poor attention to information and poor integration of information may cause lack of information processing. Therefore, this stu...

Group-living species frequently pool individual information so as to reach consensus decisions such as when and where to move, or whether a predator is present. Such opinion-pooling has been demonstrated empirically, and theoretical models have been proposed to explain why group decisions are more reliable than individual decisions. Behavioural ecology theory frequently assumes that all individ...