the concepts of similarity and dissimilarity have been the interest of many researchers. basically, in the studies the similarity between two objects or phenomena, has been discussed. in this thesis, we consider the case when the resemblance or similarity among three objects or phenomena of a set, 3-similarity in our terminology, is desired. later we will extend our definitions and propos...

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

One of the most important economic concepts is evaluation and bankruptcy prediction. Financial events, which an organization could be, exposed to serious risks and it goes bankruptcy. Therefore, prediction and assessment bankruptcy enable organizations that to be familiar the financial risks and resolve their financial deficiencies. So in this paper, we discuss one of the most important economi...