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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 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 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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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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Groups, collective decisions and markets
Journal of Economic Theory, 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hans Gersbach, Hans Haller
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Group Performance and Decision Making
Annual Review of Psychology, 2004Theory and research on small group performance and decision making is reviewed. Recent trends in group performance research have found that process gains as well as losses are possible, and both are frequently explained by situational and procedural contexts that differentially affect motivation and resource coordination.
Norbert L, Kerr, R Scott, Tindale
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Preference Elicitation for Group Decisions
2014Groups engaged in a mutual activity often need assistance in order to reach a joint decision. However, the group members’ personal preferences are often unknown and need to be collected. Querying for preferences can annoy the users. We suggest employing a voting mechanism that finds a winning item under incomplete settings.
Lihi Naamani Dery +3 more
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Group decision support systems
Decision Support Systems, 1987Abstract Group Decision Support Systems (GDSS) has been a rapidly emerging field of the 1980's. Whereas conventional Decision Support Systems (DSS) help individual decision makers, GDSS are designed to help groups of senior management and professional groups reach concensus.
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