The hierarchical hub covering facility location problems are applied to distribution systems, transportation, waste disposal, treatment services, emergency services and remote communication. The problems attempt to determine the location of service providers' facilities at different levels and specify their linking directions in order to reduce costs and to establish an appropriate condition in...

In the paper after a short review of main characteristics of risk management applications, some novel fuzzy calculation based possibilities will be presented, like the hierarchical grouping of risk factors, type-2 fuzzy sets representation and decision making on distance-based operators’ platform. The examples are given from the medical diagnostic and risk factor management. Key-Words: risk man...

We studied deceptive decision making in hypothetical scenarios that involved risk of being caught of deceiving, or a penalty after being caught of deceiving, or both. We found that the deception rate was the lowest in the scenarios involving both the risk and the penalty. Our hierarchical model for deception suggests that in balancing the possible benefits from deception, the personal discomfor...

In April 2009 the US government unveiled its blueprint for a national network of high-speed passenger rail (HSR) lines aimed at reducing traffic congestion, cutting national dependence on foreign oil and improving rural and urban environments. In implementing such a program, it is essential to identify the factors that might influence decision making and the eventual success of the HSR project,...

the sensitivity analysis for multi-attribute decision making (madm) problems is important for two reasons: first, the decision matrix as the source of the results of a decision problem is inaccurate because it sorts the alternatives in each criterion inaccurately. second, the decision maker may change his opinions in a time period because of changes in the importance of the criteria and in the ...