Methods of Group Decisions and Aggregation of Experts’ Opinions

Author(s):  
Jirí Vanícek ◽  
Ivan Vrana ◽  
Shady Aly

Expert evaluation is often the most reliable way to predict results of a certain process. Estimates from several experts are usually needed in order to achieve correct decision making. This chapter presents and systematically sorts methods for aggregation expert opinions with respect to specific features of the decision making process. Based on information theory, the chapter introduces concepts for understanding expert consensusand also discusses the impact of suppressing/emphasizing extreme estimates or of unequally valuing individual estimates. This chapter addresses the estimation of YES/NO binary results as well as numeric values of a certain attribute and also considers cases when only an estimate or a dispersion of opinions of experts is considered.

2021 ◽  
Vol 13 (12) ◽  
pp. 6581
Author(s):  
Jooyoung Hwang ◽  
Anita Eves ◽  
Jason L. Stienmetz

Travellers have high standards and regard restaurants as important travel attributes. In the tourism and hospitality industry, the use of developed tools (e.g., smartphones and location-based tablets) has been popularised as a way for travellers to easily search for information and to book venues. Qualitative research using semi-structured interviews based on the face-to-face approach was adopted for this study to examine how consumers’ restaurant selection processes are performed with the utilisation of social media on smartphones. Then, thematic analysis was adopted. The findings of this research show that the adoption of social media on smartphones is positively related with consumers’ gratification. More specifically, when consumers regard that process, content and social gratification are satisfied, their intention to adopt social media is fulfilled. It is suggested by this study that consumers’ restaurant decision-making process needs to be understood, as each stage of the decision-making process is not independent; all the stages of the restaurant selection process are organically connected and influence one another.


2018 ◽  
Vol 17 (3) ◽  
pp. 285-296 ◽  
Author(s):  
Amanda Beltrani ◽  
Amanda L. Reed ◽  
Patricia A. Zapf ◽  
Randy K. Otto

2012 ◽  
Vol 36 (1) ◽  
pp. 9-15
Author(s):  
Sabrina Soares da Silva ◽  
Ricardo Pereira Reis ◽  
Patrícia Aparecida Ferreira

More attention has been paid to environmental matters in recent years, mainly due to the current scenario of accentuated environmental degradation. The economic valuation of nature goods can contribute to the decision-making process in environment management, generating a more comprehensive informational base. This paper aims to present, in a historic perspective, the different concepts attributed to nature goods and were related to the current predominant perspectives of nature analyses. For this purpose, this paper presents the different concepts attributed to value since the pre-classical period, when nature were viewed as inert and passive providers of goods and services, this view legitimized nature's exploration without concern over the preservation and conservation of nature. The capacity of nature to absorb the impact of human action appears to be reaching its limit, considering the irreversibility, the irreproducibility and the possibility of collapse. The appropriate method for valuing natural resources is not known, but more important than the method is to respect and incorporate the particular characteristics of the nature goods into this process. These characteristics must be valuated in order to arrive at a more consistence approach to nature value and promote sustainability.


2018 ◽  
Vol 6 (1) ◽  
pp. 515
Author(s):  
Inayah Hidayati

Objective: This research aims to explain the impact of social media on the migration decision-making process of Indonesian student migrants in University of Groningen who used a social media account. In detail, this research will consider the role of social media in the migration decision-making process of students who emigrated from Indonesia and how they uses social media in the context of the migration decision-making process. Methods: The data collected included qualitative data from in-depth interviews and supported by study literatures. An interview guide was formulated to facilitate the indepth interviews and generate a better understanding of migration behavior. Expectation: Social media help Indonesian student migrants on migration decision making process and they use social media for searching information about destination area. Result: Student migrant in University of Groningen use their social media to gain information before they choose that university for study. They use Facebook to making contact with their friends and collagues in the destination country. Student group on Facebook help Indonesian student to get information about school and daily life.


2020 ◽  
Vol 12 (2) ◽  
pp. 40-41
Author(s):  
Maciej Zaorski

The implementation of modern tools in the military system constitutes an important step in supporting the decision-making process. The impact of new GIS technologies is important for the assessment of the battlefield . According to assumptions, reconnaissance is a continuous process that crowns the assessment of the opponent and of the battlefield. Site assessment is an element of the command process where the conclusions of the task analysis includes an assessment of the potential opponent together with his modus operandi and an assessment of the environment . As part of the Information Preparation of the Battlefield (hereinafter referred to as IPB), the identification of threats and limitations has an impact on the identification of potential approach routes, traffic corridors and maneuvers in assigned areas and lanes . The end result is the determination of the maneuverability of forces and resources owned or those of the opponent. The information is to relate to the impact of the terrain components on the scope and nature of conducted activities, and the hydrometeorological conditions are to relate to the impact on the terrain, equipment, and people . As far as it regards the analysis of the environment and the opponent, it is possible to apply modern technologies to shorten the time for the analyses performed within the ongoing decision-making process.


2019 ◽  
pp. 454-471 ◽  
Author(s):  
Naomi F. Dale

The consumption process of travel decision making, is influenced by a number of factors and a substantial body of decision making literature in the form of the broader ‘models of consumer behaviour' has been adapted to attempt to describe this process. Existing ‘foundation models' present variables such as personal characteristics and attitudes as factors that affect the vacation decision making process, but fail to discuss the extent to which gender and technology preferences influence decisions and destination choice. Economic models are based on utility theory as a decision making framework, however, they do not allow for the other consumer oriented variables. Current models (economic or otherwise) focus on individuals and their decision making process without a combined consideration of information search and technology gendered preferences and the impact they have on choosing a destination for a vacation.


Author(s):  
Hamza Samouche ◽  
Abdellah El Barkany ◽  
Ahmed El Khalfi

Many companies are facing a constant need to develop coordination between operational functions to quickly respond to customer requests. Thus, many practitioners are resorting to an established and integrated business management methodology, the Sales and Operations Planning (S&OP). The impact of the S&OP on operational performance was significantly demonstrated in many studies. However, it turns out that the theoretical studies made differ from what is actually applied, in addition to several parameters that are considered in the calculations especially with regard to Japanese industries. So, how is S&OP operated in this industry? What are the different calculation parameters used? and how are the results obtained and analyzed?In this paper, we will first present a short literature review of S&OP and its role and benefits. Then, we present a model of S&OP used in a wire harnesses Japanese industry. The goal is to show first a concrete example, where we present the various parameters considered in the calculations, and then we will explain how the resulting graphs are analyzed by managers and what could be done as corrective actions in case of gap existing.


2018 ◽  
Vol 51 (1-2) ◽  
pp. 13-23
Author(s):  
Emin Qerim Neziraj ◽  
Aferdita Berisha Shaqiri

Before the decision makers set much higher requirements in the decision-making than ever before due to the environment of decision-makers subject to change under the influence of progress and development of new technologies, networking individual or organization inside and the outside environment, and modern means of communication enabling continuous inflow, flow and sharing of data and information. In these modern conditions the process of collecting, analyzing, selecting data and information to make informed decisions in the context of possible restrictions and the available options, and ultimately making decisions as the basis for future business or behavior, is not simplified. The use of new technologies in the decision-making process provided numerous opportunities to facilitate decisions selection. However, the decision maker should still be able to differentiate which knowledge should be used to serve in decision making, and which models, methods, tools, systems, and procedures to be used in certain situations, with the purpose of successful decision selection. In this paper, we will examine the decision making process during the business process of the companies in Kosovo.


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