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In this paper, an AHP-TFN model based upon the AHP and basic theory of the trigonometrical fuzzy number (TFN) was established and corresponding evaluation process was described, in which to solve the inconsistence of differ judgment matrix set up in similar multi-alternative evaluation problems caused by the AHP or other fuzzy AHP to evaluate the partner selection in the formation of aviation subcontract...
The evaluation of economic efficiency of industrial enterprises is a comprehensive uncertainty system problem. Based on the theory of set pair analysis, stochastic simulation of triangular fuzzy numbers, a novel evaluation method for the economic efficiency of industrial enterprises was investigated in this paper. A concept of multi-element connection number of the set pair, which was consisted of...
Through constructing credit evaluation indicator system of listed companies, the paper uses the methods of factor analysis, expert scoring as well as triangular fuzzy number to calculate the weight of every factor which are dealt with dimensionless treatment and the total order of the indicators, thereby obtains comprehensive credit evaluation scores of listed companies, so as to provide a scientific...
We know that ranking fuzzy numbers plays an important role in decision-making and some other fuzzy application areas. In this paper, a new definition on mean of fuzzy number---quasi-mean is given. Based on the quasi-means and fuzzy degree we propose a new method for ranking fuzzy numbers. This method has the characteristics of generality, less calculation, high efficiency and it is especially tailed...
To handle the uncertain multiple attribute decision problem that the decision index value is hard to define accurately, this paper studies on the hybrid multi-attribute decision model of grey target when the index values are real number, interval number and triangular fuzzy number which exist together. According to the basic connotations of grey target decision and uncertain decision information,...
Compared with the conventional probabilistic mean-variance method, fuzzy number can better describe an uncertain environment with vagueness and ambiguity. In this paper, the portfolio selection model with bounded assets is proposed by means of possibilistic mean and possibilistic variance under the assumption that the returns of assets are triangular fuzzy numbers. Moreover, the obtained quadratic...
This paper deals with the hybrid multiple attribute decision-making problem, in which the information about attribute weights is completely unknown. In order to simplify computation, we turn interval numbers and fuzzy numbers into precise numbers. Then, we propose three weights models based on distance, entropy and index function. Finally, the subjective weight and the objective weight are integrated...
Safety management is an integral part of project management, and safety performance is possible if only there is an effective safety management. A proper performance evaluation is also found to be crucial for effective safety management on construction sites. In this paper, fuzzy analytic hierarchy process, a practical and useful technique in dealing with multi-criteria decision making problems, is...
Inventory is a common name stands for the items which are in stock points or work-in-process serving to decouple successive operations. Effective inventory management is essential for manufacturing organizations for a number of reasons. A basic economic order quantity model allowing backorders is considered in this paper. All cost parameters and the demand is assumed to be fuzzy numbers with trapezoidal...
This paper discusses a portfolio selection problem with type-2 fuzzy future returns involving interval numbers considering the investor's subjectivity. Since this proposed problem is not well-defined due to primary and secondary fuzziness, introducing the possibility measure that the total return is more than the target value, the main problem is transformed into the type-1 fuzzy programming problem...
Real estate development has been regarded as a kind of economic issue of high investment, high profit, and high risk. Nowadays, more and more attention has bee paid on online marketing. With the rapid development of residential real estate market, real estate electronic marketing has been widely applied, and its efficiency evaluation has been an important task in the process of project. New quantitative...
In this paper, measured values of annual indexes were directly utilized to assessment. By using projection, we make integrated assessment of environmental quality in Guangzhou City from 2003 to 2007. The order of annual environmental quality is obtained. The results show that the environmental quality in Guangzhou is worrying.
In recent years the number of death and injury in the traffic accident is continue increasing year by year in China, which brings a great lost for social economy. In this paper we mainly studied on the data of traffic accident and follow volume in a certain section of road. Fuzzy regression analysis using fuzzy linear models with symmetric triangular fuzzy number coefficients has been formulated earlier...
With the development of uncertain theory, fuzzy multi attribute decision making has been applicated in more and more areas. This paper established optimization model based on fuzzy ideal points for uncertain multi-attribute decision making problem in which the attribute values are given in the forms of triangular fuzzy number and the information on attribute weights is unknown completely or partly...
Power generation projects are usually capital-intensive and require long lead time, while power consumption demands high reliability of supply service. Therefore this kind of investment faces much complex situation and uncertainties especially in the liberalized electricity market. The uncertain factors bring risks and affect the benefit of the investment. The traditional DCF method supposes that...
A new multiple-criteria method (new fuzzy ORESTE multicriteria analysis method) for ranking actions with uncertain evaluations is presented. The uncertain evaluations are modeled by fuzzy numbers, and implied in Iran Telecommunication Research Center (ITRC) for evaluation of its departments. As indexes for evaluation is a key point of comparison, the criteria of department evaluation in Information...
Multiple attribute decision-making (MADM) with incomplete information are one of the important research areas in decision analysis. This paper investigates a type of multiple attribute decision-making problems with time series, in which the performances of the alternatives on attributes are represented in three different formats, namely: 1) precise number; 2) probability density function; and 3) fuzzy...
This paper studies the problem of hybrid multi-attribute decision making which integrates with precision numbers, interval numbers and fuzzy numbers. Based on the grey relative degree, a novel decision making method is presented. Then a decision making example is given to demonstrate the feasibility and rationality of this new method. Therefore, a new and effective way is obtained to solve the problem...
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