scholarly journals Enhanced Fuzzy Delphi Method in Forecasting and Decision-Making

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Majed G. Alharbi ◽  
Hamiden Abd El- Wahed Khalifa
Keyword(s):  
Delphi Method ◽  
Fuzzy Numbers ◽  
Estimation Procedure ◽  
Rand Corporation ◽  
Triangular Fuzzy Numbers ◽  
Subjective Data ◽  
Fuzzy Delphi ◽  
Santa Monica ◽  
Communication Method ◽  
Stable Points

The Delphi method is a process where subjective data are transformed into quasi-objective data using statistical analysis and are converged to stable points. The Delphi method was developed by the RAND Corporation at Santa Monica, California, and is widely used for long-range forecasting in management science. It is a method by which the subjective data of experts are made to converge using some statistical analyses. This article proposes a variation of the Delphi method using triangular fuzzy numbers, where the communication method with the experts is the same, but the estimation procedure is different. The utility of the method is illustrated by a numerical example.

The New Fuzzy SWOT: Empirical Application with Expertons

2017 ◽  
Vol 48 (1) ◽  
Author(s):  
Adriana Santos Caballero ◽  
Jaime Gil Lafuente
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Numbers ◽  
Analytical Techniques ◽  
Strategic Marketing ◽  
Future Research ◽  
Triangular Fuzzy Numbers ◽  
Pharmaceutical Sector ◽  
Empirical Application ◽  
Fuzzy Delphi ◽  
Level Of Importance

The aim of this work is to analyze and improve the SWOT technique, considered one of the most classic analytical techniques in the field of strategy. The findings show how an instrument of fuzzy logic can measure the degree of strength of factors that correspond to the strengths, weaknesses, opportunities, and threats which correspond to a particular sector: in this case, that of the pharmaceutical sector of Paraguay. Its originality consists of working with Expertons, an instrument which maintains the information of all studied experts intact in order to obtain a better result. From this, a model which captures and measures the level of importance of each of the SWOT factors is developed. Future research are suggested which integrate Fuzzy-SWOT and Fuzzy-Delphi to work with classic fuzzy numbers, triangular fuzzy numbers, and trapezoidal fuzzy numbers in order to obtain a more complete and complex Fuzzy-SWOT model which better reflects reality. Keywords: fuzzy logic, SWOT, theory of expertons, strategic marketing.

scholarly journals A Fuzzy Delphi Consensus Methodology Based on a Fuzzy Ranking

Mathematics ◽  
2021 ◽  
Vol 9 (18) ◽  
pp. 2323
Author(s):  
Antonio Francisco Roldán López de Hierro ◽  
Miguel Sánchez ◽  
Daniel Puente-Fernández ◽  
Rafael Montoya-Juárez ◽  
Concepción Roldán
Keyword(s):  
Delphi Method ◽  
Fuzzy Numbers ◽  
Cross Cultural ◽  
Delphi Consensus ◽  
Real Numbers ◽  
Fuzzy Delphi ◽  
Wide Range ◽  
Fuzzy Ranking ◽  
The One ◽  
Strongly Agree

Delphi multi-round survey is a procedure that has been widely and successfully used to aggregate experts’ opinions about some previously established statements or questions. Such opinions are usually expressed as real numbers and some commentaries. The evolution of the consensus can be shown by an increase in the agreement percentages, and a decrease in the number of comments made. A consensus is reached when this percentage exceeds a certain previously set threshold. If this threshold has not been reached, the moderator modifies the questionnaire according to the comments he/she has collected, and the following round begins. In this paper, a new fuzzy Delphi method is introduced. On the one hand, the experts’ subjective judgments are collected as fuzzy numbers, enriching the approach. On the other hand, such opinions are collected through a computerized application that is able to interpret the experts’ opinions as fuzzy numbers. Finally, we employ a recently introduced fuzzy ranking methodology, satisfying many properties according to human intuition, in order to determine whether the expert’s fuzzy opinion is favorable enough (comparing with a fixed fuzzy number that indicates Agree or Strongly Agree). A cross-cultural validation was performed to illustrate the applicability of the proposed method. The proposed approach is simple for two reasons: it does not need a defuzzification step of the experts’ answers, and it can consider a wide range of fuzzy numbers not only triangular or trapezoidal fuzzy numbers.

Totally Symmetric Type-2 Triangular Fuzzy Numbers

2018 ◽  
Vol 9 (11) ◽  
pp. 1717-1727
Author(s):  
Ajay Minj ◽  
Pathinathan T.
Keyword(s):  
Fuzzy Numbers ◽  
Triangular Fuzzy Numbers

Challenges of Small- and Medium-Sized Enterprises (SMEs) in Business Growth: A Case of Footwear Industry

2020 ◽  
pp. 2516600X2097412
Author(s):  
A. K. M. Hedaitul Islam ◽  
Md. Rayhan Sarker ◽  
Md. Israil Hossain ◽  
Kauser Ali ◽  
K. M. Asadun Noor
Keyword(s):  
Delphi Method ◽  
Market Competition ◽  
Bank Loan ◽  
Fuzzy Analytical Hierarchy Process ◽  
Business Growth ◽  
Fuzzy Delphi ◽  
Footwear Industry ◽  
Research Gap ◽  
The Government ◽  
Hierarchy Process

Small- and medium-sized enterprises (SMEs) create more employment opportunities and thus, contribute to the national economy of a country. Footwear SMEs have been identified as an emerging economy in Bangladesh, which is facing several challenges. Very few studies focused on the challenges of SMEs’ business growth. However, until now, no literature particularly focused on the challenges of footwear SMEs and discussed how to tackle these challenges. To fill this research gap, we use the Fuzzy Delphi Method and fuzzy analytical hierarchy process, to find out the degree of importance of critical challenges of footwear SMEs. In our study, 16 critical challenges are identified among which lingering in cash flow (F3), fierce market competition (E1), access to finance (F2), unfavorable bank loan policy (F1), and poor supply chain management (E2) have been ascertained as the top five critical challenges, respectively. This study contributes to the existing literature of SMEs by identifying five new challenges from the context of the footwear industry. Furthermore, we suggest some possible measures to overcome the identified challenges. This study can guide the government, practitioners, and SME policymakers to address these challenges for the growth of any SME sector.

scholarly journals The Application of Fuzzy Theory in the Evaluation of Visual Images of Smartphone Rear Cameras

2021 ◽  
Vol 11 (8) ◽  
pp. 3555
Author(s):  
Chien-Hsiung Chen ◽  
Zhongzhen Lin
Keyword(s):  
Factor Analysis ◽  
Fuzzy Numbers ◽  
Fuzzy Theory ◽  
Consumer Perceptions ◽  
Visual Images ◽  
Triangular Fuzzy Numbers ◽  
Potential Consumer ◽  
Comprehensive Comparison ◽  
Different Shapes ◽  
The Relationship

In the present era, technology is developing rapidly. Smartphones play a significant part in people’s lives. However, the research on smartphones mainly focuses on the area of technological realization. The purposes of this study were to examine the relationship between the various rear cameras in smartphones and consumer perceptions, and to understand consumers’ purchasing intentions and preferences. Through the methods of multidimensional scaling (MDS), factor analysis and triangular fuzzy numbers, the visual images of the smartphone rear cameras were analyzed and discussed. The results indicate that the visual images taken by different shapes of rear camera are quite distinct in the categories of innovative and fashionable, and simple and pure, but less distinct in the categories of harmonious and ordered, premium and technical, and superior and valuable. Through a comprehensive comparison, four groups whose images were similar were created. The outcome effectively reflects the potential consumer demands for smartphone rear camera patterns, providing insights for design practices in the smartphone industry.

scholarly journals Explicit scientific argument on science teaching as an inquiry: designing activity on online schema using fuzzy delphi method

2021 ◽  
Vol 1918 (5) ◽  
pp. 052071
Author(s):  
Z R Hendrastuti ◽  
S Siswanto ◽  
A Muhlisin ◽  
F Firmadani ◽  
H Hartono ◽  
...  
Keyword(s):  
Science Teaching ◽  
Delphi Method ◽  
Fuzzy Delphi Method ◽  
Fuzzy Delphi ◽  
Scientific Argument
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