scholarly journals Study on Group Decision Making System for the Determination of Snow Removal Order of Roads

1986 ◽  
Vol 3 ◽  
pp. 57-64
Author(s):  
Noboru KIMATA
Keyword(s):  
Decision Making ◽  
Group Decision Making ◽  
Group Decision ◽  
Snow Removal ◽  
Decision Making System

scholarly journals A New Grey Approach for Using SWARA and PIPRECIA Methods in a Group Decision-Making Environment

Mathematics ◽  
2021 ◽  
Vol 9 (13) ◽  
pp. 1554
Author(s):  
Dragiša Stanujkić ◽  
Darjan Karabašević ◽  
Gabrijela Popović ◽  
Predrag S. Stanimirović ◽  
Muzafer Saračević ◽  
...  
Keyword(s):  
Decision Making ◽  
Group Decision Making ◽  
Group Decision ◽  
Multiple Criteria Decision Making ◽  
Grey System Theory ◽  
Multiple Criteria ◽  
Decision Making Process ◽  
Grey System ◽  
Criteria Weights

The environment in which the decision-making process takes place is often characterized by uncertainty and vagueness and, because of that, sometimes it is very hard to express the criteria weights with crisp numbers. Therefore, the application of the Grey System Theory, i.e., grey numbers, in this case, is very convenient when it comes to determination of the criteria weights with partially known information. Besides, the criteria weights have a significant role in the multiple criteria decision-making process. Many ordinary multiple criteria decision-making methods are adapted for using grey numbers, and this is the case in this article as well. A new grey extension of the certain multiple criteria decision-making methods for the determination of the criteria weights is proposed. Therefore, the article aims to propose a new extension of the Step-wise Weight Assessment Ratio Analysis (SWARA) and PIvot Pairwise Relative Criteria Importance Assessment (PIPRECIA) methods adapted for group decision-making. In the proposed approach, attitudes of decision-makers are transformed into grey group attitudes, which allows taking advantage of the benefit that grey numbers provide over crisp numbers. The main advantage of the proposed approach in relation to the use of crisp numbers is the ability to conduct different analyses, i.e., considering different scenarios, such as pessimistic, optimistic, and so on. By varying the value of the whitening coefficient, different weights of the criteria can be obtained, and it should be emphasized that this approach gives the same weights as in the case of crisp numbers when the whitening coefficient has a value of 0.5. In addition, in this approach, the grey number was formed based on the median value of collected responses because it better maintains the deviation from the normal distribution of the collected responses. The application of the proposed approach was considered through two numerical illustrations, based on which appropriate conclusions were drawn.

scholarly journals COVID-19 and The Hidden Cost of Reduced Civil Liberties

2020 ◽  
Author(s):  
Andy E Williams
Keyword(s):  
Decision Making ◽  
Group Decision Making ◽  
Group Decision ◽  
Collective Intelligence ◽  
Civil Liberties ◽  
Martial Law ◽  
Group Outcomes ◽  
Hidden Cost ◽  
Decision Making System ◽  
The Cost

The ongoing COVID-19 outbreak that emerged from Wuhan, China in 2020 has seen unprecedented restrictions on civilian populations in many countries in the attempt to curtail the spread of the pandemic. A recently developed model of general collective intelligence predicts the properties of group decision-making systems that are required to optimize collective outcomes, along with predicting that authoritarian systems of decision-making might tend to be restricted to non-optimal group outcomes in ways that are somewhat hidden in that they require an understanding of this new and relatively unknown model of general collective intelligence. In light of this model of general collective intelligence, the economic restrictions imposed to combat the pandemic take on a new light, since these restrictions have not only resulted in economic lockdowns for some countries, but in some cases have also effectively imposed martial law. The hidden cost of this reduction in civil liberties is explored from the perspective of the cost of an authoritarian decision-making system resulting in non-optimal group outcomes as theorized by this model of general collective intelligence, using models of government inefficiency to assess the cost of those non-optimal group outcomes, and therefore the hidden cost of reduced civil liberties.

Design and Implementation of a Embedded Fuzzy Multi-criteria Group Decision Making System for Wellbeing, Health and Security

2020 ◽  
Author(s):  
Maria de los Angeles Arellano Vera ◽  
Victor Manuel Zamudio Rodriguez ◽  
Carlos Lino Ramirez ◽  
David Asael Gutierrez Hernandez ◽  
Faiyaz Doctor ◽  
...  
Keyword(s):  
Decision Making ◽  
Group Decision Making ◽  
Group Decision ◽  
Design And Implementation ◽  
Decision Making System

Design of a Smart Device with Fuzzy Multi-criteria Group Decision Making System for The Elderly

2021 ◽  
Author(s):  
Maria de los Angeles Arellano Vera ◽  
Victor Manuel Zamudio Rodriguez ◽  
David Asael Gutierrez Hernandez ◽  
Carlos Lino Ramirez ◽  
Faiyaz Doctor ◽  
...  
Keyword(s):  
Decision Making ◽  
Group Decision Making ◽  
Group Decision ◽  
The Elderly ◽  
Smart Device ◽  
Decision Making System
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