The goal of this research is to develop and verify elicitation methods to assess counterterrorism values that could be of interest for the purpose of planning defensive strategies (but are difficult to estimate because of insufficient historical data) by combining the judgments of multiple domain experts. In particular, the project focused on producing reliable estimates from the opinions of mu...

Knowledge engineering often involves using the opinions of experts, and very frequently of a group of experts. Experts often cooperate in creating a knowledge base that uses fuzzy inference rules. On the one hand, this may lead to generating a higher quality knowledge base. But on the other hand, it may result in irregularities, for example, if one of the experts dominates the others. This pape...

implementation of the risk management concepts into construction practice may enhance the performance of project by taking appropriate response actions against identified risks. this research proposes a multi-criteria group decision making approach for the evaluation of different alternative response scenarios. to take into account the uncertainties inherent in evaluation process, fuzzy logic i...

Recently, testing and diagnostic learning systems have been considered as a useful tool for analyzing students’ learning problems and giving helpful learning suggestions to them to improve their learning performance. Among the existing methods, a multi-expert approach has introduced a set of rules to integrate test item-concept relationship opinions given by multiple experts. However, when inte...

Yager’s ordered weighted averaging (OWA) operator has been widely used in soft decision making to aggregate experts’ individual opinions or preferences for achieving an overall decision. The traditional Yager’s OWA operator focuses exclusively on the aggregation of crisp numbers. However, human experts usually tend to express their opinions or preferences in a very natural way via linguistic te...

This paper presents a Qualitative Risk Analysis Framework to identify and prioritize environmental risks encountered in infrastructure projects, which is applied to developing countries. The framework incorporates consensus and quality of experts in the process of evaluating environmental risk events and is composed of (1) Fuzzy Expert System (FES) to determine attributes of experts; (2) Fuzzy ...

Background and aim: Pemphigus vulgaris (PV) is the most common blistering disease in Iran and many other Asian countries with a relatively high incidence and involvement of both skin and mucous membrances in majority of patients. The aim of this study was to assess the opinions of Asian experts on the diagnosis and management of PV. Materials and Methods: A questinnaire-based mailed/emailed sur...

In Group Decision Making problems experts have to provide their preferences about some alternatives to solve a particular problem. Fuzzy Preference Relations are a very widely preference representation format that experts can use to express their opinions about the alternatives. But due to their own personal background and abilities experts are not often capable of provide complete and consiste...