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A note on synthesizing group decisions
Decision Support Systems, 1998Abstract An approach is discussed to expert group aggregation based on the Singular Value Decomposition (SVD) of Analytic Hierarchy Process (AHP) pairwise comparison matrices. The group decision phase should consist of the aggregation of the individual expert weight vectors determined by SVD, taking the voting powers of the experts and sensitivity ...
Saul I. Gass, Tamás Rapcsák
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Foundations for Group Decision Analysis
Decision Analysis, 2013This paper derives a general prescriptive model for group decision analysis based on a set of logical and operational assumptions analogous to those for individual decision analysis. The approach accounts for each group member's potentially different frames of their common decision, including different events and different consequences of concern ...
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The Importance of Expertise in Group Decisions
SSRN Electronic Journal, 2017zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Group decision with inconsistent knowledge
IEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and Humans, 2002In this paper, dual exponential possibility distributions, namely, upper and lower exponential possibility distributions, are identified from the given data to characterize a decision-maker's knowledge. A decision group's knowledge can be represented by a set of such dual possibility distributions.
Peijun Guo +2 more
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Group Decisions and Decisions for a Group
1991I define group utility for cases in which a professional decides for a group using his probability assignment for states and the group’s utility assignment for consequences. I take the group utility of an outcome o as the sum of power weighted individual utilities of o, i.e., SUM i p i U i(o) .
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Group decision-making in animals
Nature, 2003Groups of animals often need to make communal decisions, for example about which activities to perform, when to perform them and which direction to travel in; however, little is known about how they do so. Here, we model the fitness consequences of two possible decision-making mechanisms: 'despotism' and 'democracy'. We show that under most conditions,
L, Conradt, T J, Roper
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2013
Individuals may draw different conclusions from the same information. For example, members of a jury may disagree on the verdict even though each member possesses the same information regarding the case under discussion. This happens because individuals can hold different reasonable positions based on the information they share.
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Individuals may draw different conclusions from the same information. For example, members of a jury may disagree on the verdict even though each member possesses the same information regarding the case under discussion. This happens because individuals can hold different reasonable positions based on the information they share.
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Group decision focusing on outliers
2011 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2011), 2011This paper investigates a group decision problem focusing on outliers in a group. The group decision in this paper is considered as approximation of all individual opinions, which are given normalized crisp or interval values. The difference of an individual opinion from the group opinion represents his/her compromise in order to reach a consensus so ...
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On a Rule for Group Decision-making
Medical Care, 1969WHEN a number of medical authorities give independent judgments about a medical case, for example, in the case of Utilization Review by multiple reviewers, there arises the question of how to report the results when opinions conflict. Zimmer and Odoroff3 have addressed this problem by proposing a construct called the Physician Index (PI) of a record ...
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A Calibrated Group Decision Process
Group Decision and Negotiation, 2013In practice most organisational decisions are made by groups that bring into the problem multiple perspectives, both complementary and contradictory. When having a group of decision makers, usually individuals’ preferences are either led to consensus or are aggregated with the use of some function like the median, the arithmetic or geometric mean.
Elena Rokou, Konstantinos Kirytopoulos
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