fuzzy cognitive maps (fcms) have successfully been applied in numerous domains to show the relations between essential components in complex systems. in this paper, a novel learning method is proposed to construct fcms based on historical data and by using meta-heuristic: genetic algorithm (ga), simulated annealing (sa), and tabu search (ts). implementation of the proposed method has demonstrat...

A fuzzy cognitive map is a graphical means of representing arbitrary complex models of interrelations between concepts. The purpose of this paper is to describe a dynamic/adaptive fuzzy cognitive map based on the random neural network model. Previously, we have developed a random fuzzy cognitive map and illustrated its application in the modeling of processes. The adaptive fuzzy cognitive map c...

Fuzzy cognitive maps (FCMs) were introduced as a tool to model the dynamics of qualitative systems and have been around for more than 20 years. However, how they have been used and the interpretations of their results are nowadays far from their original intended goal. This paper focuses on discussing the structure, the semantics and the possible use of FCM as tools to model and simulate comple...

This paper presents a comparison between fuzzy cognitive maps (FCM) and the fuzzy analytic network process (FANP) as two well-known techniques to model causality during the process of assessing readiness of an organisation to implement a change. FCM is well known generally, but has been rarely used in assessing readiness for change. In this paper, we demonstrate several advantages of FCM for ch...

The purpose of this paper is to describe an adaptive fuzzy cognitive map based on the random neural network model. The adaptive fuzzy cognitive map changes its fuzzy causal web as causal patterns change and as experts update their causal knowledge. We show how the adaptive random fuzzy cognitive map can reveal implications of models composed of dynamic processes.

Recently, Greece experienced a financial crisis unprecedented in its modern history. In May of 2010 Greece signed a bailout memorandum with Troika (a tripartite committee constituted by the European Central Bank, the European Commission and the International Monetary Fund). In February of 2012, they proceeded to a second bailout package along with a debt restructuring deal that included a priva...

In the current Web, e-document has been the most common vehicle for delivering and exchanging information. As the amount of e-documents has grown enormously, effective classification facilities are urgently needed to classify and query e-documents users want. In this paper, we propose a method to classify e-documents into a set of predefined categories based on Fuzzy Cognitive Map (FCM). The e-...

Department of Informatics & Computer Technology, Technological Educational Institute of Lamia, 3 Km Old National Road Lamia-Athens, 35100 Lamia, Greece [email protected] Department of Nuclear Medicine, University General Hospital of Patras, 26500 Patras, Greece, [email protected] Department of Intensive Care Unit, Lamia General Hospital, 35100 Lamia, Greece [email protected];dimitri...