Comprehensive Evaluation of Power Quality Based on the Integration of Rough Set and Evidence Theory

2013 ◽  
Vol 291-294 ◽  
pp. 1336-1345
Author(s):  
Shang Yuang Li
Keyword(s):  
Decision Making ◽  
Power Quality ◽  
Rough Set ◽  
Evaluation Method ◽  
Rough Set Theory ◽  
Comprehensive Evaluation ◽  
Evidence Theory ◽  
Comprehensive Evaluation Method ◽  
Basic Probability ◽  
Pros And Cons

In order to assess the power quality objectively and effectively, a comprehensive evaluation method of power quality based on rough set and D-S evidence theory has been proposed in this paper. The method combines rough set theory by means of defining the decision-making strength and expansion rules and using the decision-making table to obtain the basic probability assignment of D-S evidence theory, then by applying the fusion rules of evidence theory to integrate the various indicators of power quality, the pros and cons of ordering from each power quality evaluations can be obtained to achieve a comprehensive evaluation of power quality. The examples show that the results of power quality evaluation are more objective and rational by using this method. So it can prove the correctness and superiority of this method.

Evaluation on Engineering Geology Applicability for Urban Construction Land Based on GIS: Taking Zhengding New District of Shijiazhuang City for Example

2013 ◽  
Vol 671-674 ◽  
pp. 35-38
Author(s):  
Chun Yuan Liu ◽  
Jian Zhu Sun ◽  
Yu Liu
Keyword(s):  
Evaluation Method ◽  
Rough Set Theory ◽  
Engineering Geology ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Scientific Basis ◽  
Analytic Hierarchy ◽  
Construction Land ◽  
Comprehensive Evaluation Method ◽  
Urban Construction

In this paper, taking the Zhengding new district of Shijiazhuang city as an example, we put forward to take advantages of analytic hierarchy process and rough set theory and combine them with fuzzy comprehensive evaluation method to do the quantitative analysis of suitability of the engineering geology conditions of urban construction land .It can make the evaluation more objective. This paper divides study area into the most suitable,suitable,less suitable and unsuitable,and provides a strong scientific basis for the design and planning.

Durability Environment Division of Concrete Structures Based on Combination of Fuzzy and Rough Set

2011 ◽  
Vol 368-373 ◽  
pp. 617-623 ◽  
Author(s):  
Di Tao Niu ◽  
Da Ming Luo ◽  
Guo Hua Xing ◽  
Hui Ma
Keyword(s):  
Rough Set ◽  
Data Model ◽  
Evaluation Method ◽  
Rough Set Theory ◽  
Comprehensive Evaluation ◽  
Concrete Structures ◽  
Measured Data ◽  
Determination Method ◽  
Shenzhen City ◽  
Regional Factors

In this paper, fuzzy set and rough set theory were used to the research of durability environment division of concrete structures. Based on discretization of the measured data, the significance of attributes among rough sets was estimated instead of weight determination, and a relation data model about the durability effecting factors of concrete structures was established. A knowledge system was built through making attribute value into eigenvalue. During data analysis, the assessment of the regional factors was computed by analyzing the support and significance of evaluation method for the predicted object. The proposed approach overcomes the subjectivity of traditional weight determination method, After researching on durability environment divisions of concrete structures in Shenzhen city, the result shows that the proposed approach overcomes the subjectivity of traditional weight determination method, possesses much more objectivity and improved the accuracy and efficiency of comprehensive evaluation.

Research on the Choice of District Resolves Solution of Chinese Railway Reform and Restructuring

2014 ◽  
Vol 644-650 ◽  
pp. 5864-5867
Author(s):  
Zhao Hui
Keyword(s):  
Cluster Analysis ◽  
Hierarchical Cluster Analysis ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Hierarchical Cluster ◽  
Gray Scale ◽  
Comprehensive Evaluation Method ◽  
Balance Scale ◽  
Pros And Cons ◽  
Division Scheme

This paper, using the hierarchical cluster analysis and the gray scale comprehensive evaluation method, considering operating balance scale of regional companies, the proportion of inter-regional exchange of goods, compares the pros and cons of each division scheme and we find that seven regional companies is the most suitable for railway development.

Research on Ranking Model Based on Multi-User Attribute Comprehensive Evaluation Method

2014 ◽  
Vol 644-650 ◽  
pp. 2399-2402 ◽  
Author(s):  
Xiao Lin Xu ◽  
Guang Lin Xu ◽  
Jia Li Feng
Keyword(s):  
Decision Making ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Typical Pattern ◽  
Comprehensive Evaluation Method ◽  
Object System ◽  
Model Based ◽  
Ranking Model ◽  
Evaluation Group ◽  
Multiple Attributes

In evaluation and decision-making, for an object system with multiple attributes and indicators, it is a typical pattern to calculate an assessment value on each object using some methods to get the ranking of objects, so as to choose the best according to sorting result of the values.The paper establishes the evaluation ranking model on the basis of multi-user attribute comprehensive evaluation method which focuses on how to give a comprehensive evaluation on objects taking the users’ preferences on different attributes in an evaluation group into account,and thereby produce evaluation values and sorting results of objects.Simulation verifies the ranking model in evaluation and decision-making.

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