A new consensus model for group decision making using fuzzy ontology

Communications in Computer and Information Science

et al. 2015

Abstract. With the incorporation of web 2.0 frameworks the complexity of decision making situations has exponentially increased, involving in many cases many experts, and a huge number of different alternatives. In the literature we can find a great deal of methodologies to assist multi-person decision making. However these classical approaches are not prepared to deal with such a huge complexity and there is a lack of tools that support the decision processes providing some graphical information. Therefore the main objective of this contribution is to present an open source tool developed in R to provide a quick insight of the evolution of the decision making by means of meaningful graphical representations. Thanks to the modular architecture of this solution this tool can be easily adapted to work with various Group decision making methodologies.

“…In addition, more complex approaches based on ontologies [21] and trust networks [25] will be included.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

GDM-VieweR: A New Tool in R to Visualize the Evolution of Fuzzy Consensus Processes

Ureña

Cabrerizo

Communications in Computer and Information Science

et al. 2015

“…In this new scenario, it is needed automatic software tools not only to combine the information in the best possible way but also to better analyze the whole context, providing a rapid and complete understanding about the current state of the decision process. Some initial works have been proposed [3,44,45,47], but they present some weak points: (i) they are developed as closed systems and, hence, they are not aimed to be upgraded or extended by other researchers since in most of the cases they do not provide the source code or they are based in proprietary software, (ii) they are extremely dependent of the user interface and, therefore, they cannot be adapted to work in other environments such as smart phones, (iii) not all of them make available graphical visualizations or output measures displaying the evolution of the process, and (iv) they do not offer the possibility of creating a data set to test and compare the performance of different approaches.…”

Section: Consensus and Softwarementioning

confidence: 99%

Fuzzy decision making and consensus: Challenges

Cabrerizo

Al‐Hmouz

et al. 2015

IFS

181

Abstract. Group decision making is part of every organizational life. It is a type of participatory process in which multiple decision makers acting collectively, analyze problems, consider and evaluate several alternatives, and select from among the alternatives a solution. In such a situation, an important issue is the level of agreement or consensus achieved among the group of decision makers before obtaining the solution. In the beginning, consensus was meant as a full and unanimous agreement. Regrettably, this stringent concept of consensus in many cases is a utopia. As a result, and from a pragmatic point of view, it makes more sense to speak about a degree of consensus and, here, the theory of fuzzy sets has delivered new tools for the analysis of such imprecise phenomena like consensus. Given the significance of reaching an accepted solution by all the decision makers, consensus is a major aim of group decision making problems and, in such a way, it has obtained a great attention in the literature. However, there still exist several dares which have to be tackled by the researchers. The purpose of this paper is to bring out several issues that represent challenges that have to be faced.

“…In [22], Fuzzy Ontologies are used to create an intelligent system that help to determine the level of severity and treatment recommendation for Benign Prostatic Hyperplasia disease. Not surprisingly, Fuzzy Ontologies have been recently used in the field of group decision making [23].…”

Section: B Fuzzy Ontologiesmentioning

confidence: 99%

A Novel Group Decision Making Method to Overcome the Web 2.0 Challenges

Morente-Molinera

Pérez

2015 IEEE International Conference on Systems, Man, and Cybernetics

et al. 2015

Abstract-With the appearance of Web 2.0 technologies, the way Internet is conceived has dramatically changed. Internet users have begun to perform a more active role in providing and sharing the information available on the Web. Thanks to mobile technologies, users can access the Internet from their smartphones at any time, independently of their location. Moreover, users gather in communities where they can communicate and share information. These communities can hold a high number of people and, consequently, a large amount of information need to be managed. Nevertheless, as the information tends to be disorganized, it is difficult for users to manage them properly to make the most of it. Therefore, there is a necessity of tools that can help users to organize and manage in a proper way the large amount of available information. In this paper, we propose the use of a novel group decision making approach to allow a high number of people to communicate among themselves and reach conclusions in a regulated way. As a high amount of people usually implies too much information, we propose the use of Fuzzy Ontologies as a way to deal with it in an organized way.