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In recent decade, DRM (digital rights management) has focused on security techniques for solving the issues as the malicious copy, free dissemination and unrestricted abuse of digital contents or assets. Whereas some increasingly enhanced security policies, which were implemented at contents provider-side or user-side, have not brought about optimal utilities for participants in the contents value...
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...
In Internet-based e-commerce, the transaction entities' trust levels provided by e-commerce platform can be viewed as a key indicator for users selecting transaction partners. The trust of transaction entities objectively and comprehensively represents the integrated influence of various trust attributes. Aiming at uncertainty and ambiguity of trust in e-commerce, the concept of membership degree...
This paper studies the dynamic decision-making problem in the intuitionistic fuzzy environment. For the decision matrix composed by intuitionistic fuzzy numbers, the intuitionistic fuzzy priority rating model is established to determine the membership relation of each alternative to the excellent alternative set, which is also described by intuitionistic fuzzy number. Furthermore, based on the score...
To perform fuzzy risk assessment, the simplest way is to calculate the fuzzy expected value and convert fuzzy risk into non-fuzzy risk, i. e., a crisp value. In doing so, there is a transition from a fuzzy set to crisp set. Therefore, the fuzzy risk can be a multi-valued risk or set-valued risk. Calculation of the fuzzy expected value of Yiwu city's water resource risk has been performed based on...
This paper establishes a comprehensive assessment index system according to related literature. Through determining the weight of each target index by analytical hierarchy process, building fuzzy mapping from index set to assessment set, calculating fuzzy matrix by weight average operator M(?? , +), we establish the commercial bank credit risk comprehensive assessment system model, and thereby obtain...
Virtual enterprise is the outcome of fierce competition in the world market. The selection of partners is one of the key factors for the success of virtual enterprises. Multi-agent system is an incompact agent federation composed of many agents, with its characteristics identical to virtual enterprises. It is, therefore, reasonable and effective to apply to the selection of enterprises' partner. The...
With respect to multiple periods multiple attribute decision making problems with intuitionistic fuzzy information, some operational laws, score function and accuracy function of intuitionistic fuzzy numbers are introduced, and a new operator called dynamic intuitionistic fuzzy weighted geometric (DIFWG) operator is presented. A model based on DIFWG operator is developed to solve the multiple periods...
As the development of economic globalization and the drastic competition of market, enterprise merger and acquisition (M & A) has played a significant role in expanding the scale of the enterprise and enhancing the competitive power. Thus, the issues on corporate culture and corporate culture integration arouse much interest from a lot of scholars, and after taking some qualitative and quantitative...
Organizational culture has been widely studied in management research during the past 30 years. Most culture and effectiveness researchers have employed numerous qualitative and quantitative approaches on proving that organizational culture variables can predict effectiveness or cultural variables can indicate effectiveness. Yet, few of them have done anything to construct an evaluation index system...
One of the main goals of e-government is increasing government service capability (GSC). GSC evaluation is a required work with strategic significance. The objective of this study is to investigate a fuzzy multiple attributes decision-making model for evaluating GSC. A framework for evaluating GSC is presented, which includes two parts, one is an evaluation hierarchy with attributes, the other a judgment...
Marginal prices have been recognized as the core approach to the economic evaluation of generation and transmission services in an electricity market environment. In this context, this paper presents the new fuzzy optimal power flow algorithm as a model to addresses the impact of load and generation cost uncertainties in nodal marginal prices. Since loads and generation costs are represented by fuzzy...
ORESTE as an outranking method is used for ranking, but in vague situation, it cannot be useful. Thus, in this paper, in order to encounter this problem, a novel method combining the fuzzy set theory and ORESTE method is developed which used TOPSIS method for creating results that are more precise. This combined method is used for ranking the Information and Communication Technology (ICT) research...
A novel gene regulatory network model via the fuzzy logic is proposed. Fuzzy logic can effectively model gene regulation and interaction to accurately reflect the underlying biology. By judging genes expression level on the fuzzy rule, Fuzzy Boolean network (FBN) makes it possible to handle simultaneously the randomness and fuzziness of biological phenomena.
Some financial variables can always be observed with perturbations and be expected in the imprecise sense as a result of the fluctuation of financial markets from time to time. Therefore, this paper estimated the fuzzy term structure of interest rates of the National Debt Market in China based on fuzzy regression and fuzzy programming techniques. This method will enable to quantify the anticipated...
The paper proposes a structured model for evaluating distance education system alternatives using the fuzzy analytical hierarchy process (FAHP). Selecting process of an alternative has been very important issue for education centers for years. The paper aims to demonstrate how FAHP model can help in solving such decisions in practice. The effectiveness of the FAHP model is illustrated using a company...
In this paper we study possible extensions of classical difference structures when fuzzy relations are involved. In this framework quaternary fuzzy relations arise. Three models are introduced, based on three different interpretations of fuzzy implications. Functional forms of the quaternary fuzzy relation are determined by solutions of functional equations.
A novel user equilibrium traffic assignment model in view of the drivers' different familiar levels with the network is presented in this paper. In the model, drivers are divided into classes according as their knowledge about the network traffic condition and travel-decision characteristics are the same within each class, but differ among classes. Some new concepts, such as OD perceived cost and...
Currently proposed group decision making approaches, such as expected utility theory, the analytic hierarchy process and fuzzy linguistic approach, require expert working on problem individually, which discourages the cooperation and communication among experts. In this paper, we propose an approach which aids group decision making by analyzing the process of group discussion. Our approach consists...
This paper analyzes all possible kinds of risks in the executive process of BOT projects bidding program and studies the problems of risk assessment of BOT projects bidding program. First of all, this paper constructs the indicator system of risk evaluation from the point of main sources of risk. Then, it makes the appraisal for the risk evaluation model of BOT project bidding program with the method...
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