scholarly journals Risk Evaluation of Bogie System Based on Extension Theory and Entropy Weight Method

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Yanping Du ◽  
Yuan Zhang ◽  
Xiaogang Zhao ◽  
Xiaohui Wang
Keyword(s):  
Index System ◽  
Risk Evaluation ◽  
Extension Theory ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Entropy Weight ◽  
Practical Evaluation ◽  
Entropy Weight Method ◽  
Weight Method ◽  
Inspection Data

A bogie system is the key equipment of railway vehicles. Rigorous practical evaluation of bogies is still a challenge. Presently, there is overreliance on part-specific experiments in practice. In the present work, a risk evaluation index system of a bogie system has been established based on the inspection data and experts’ evaluation. Then, considering quantitative and qualitative aspects, the risk state of a bogie system has been evaluated using an extension theory and an entropy weight method. Finally, the method has been used to assess the bogie system of four different samples. Results show that this method can assess the risk state of a bogie system exactly.

Research on Degree Evaluation of Rural Waste Recycling of Heilongjiang Province Based on the Integrated Evaluation Method

2011 ◽  
Vol 347-353 ◽  
pp. 1735-1739
Author(s):  
Jie Shang ◽  
Yuan Yao
Keyword(s):  
Index System ◽  
Agricultural Waste ◽  
Waste Recycling ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Heilongjiang Province ◽  
Entropy Weight ◽  
Development Direction ◽  
Entropy Weight Method ◽  
Weight Method

This paper has analyzed the degree of agricultural waste recycling utilization, and problems existing in current rural calculated degree of waste recycling in Heilongjiang province, using AHP and entropy weight method integrated and construct the rural waste recycling system, and points out that the evaluation index system of agricultural waste recycling after the development direction.,This paper has analyzed the degree of agricultural waste recycling utilization, and problems existing in current rural calculated degree of waste recycling in Heilongjiang province, using AHP and entropy weight method integrated and construct the rural waste recycling system, and points out that the evaluation index system of agricultural waste recycling after the development direction.

On urban road traffic state evaluation index system and method

2017 ◽  
Vol 31 (01) ◽  
pp. 1650428 ◽  
Author(s):  
Fei Su ◽  
Honghui Dong ◽  
Limin Jia ◽  
Xuan Sun
Keyword(s):  
Index System ◽  
Road Network ◽  
Road Traffic ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Entropy Weight ◽  
Traffic State ◽  
State Evaluation ◽  
Entropy Weight Method ◽  
Weight Method

Traffic state evaluation is a basic and critical work in the research on road traffic congestion. It can provide basic data support for the improvement measures and information release in traffic management and service. The aim of this research is to obtain a comprehensive value to describe traffic state accurately based on the evaluation index system. In this paper, it is carried out using fuzzy c-means (FCM) algorithm and fuzzy entropy weight method. In the framework, traffic flow was classified into six different states to determine the fuzzy range of indices using the improved FCM clustering analysis. Besides, fuzzy entropy weight method is proposed to compute the evaluation result of traffic state for section, road and road network, respectively. The experiments based on the traffic information in a subset of Beijing’s road network prove that the findings of traffic evaluation are in accordance with the actual situation and people’s sense of traffic state.

Study on the Transportation - Economy Coordinated Development Based on Entropy Weight

2012 ◽  
Vol 253-255 ◽  
pp. 1278-1281
Author(s):  
Hua Qin Zhang
Keyword(s):  
Economic Development ◽  
Index System ◽  
Transportation Infrastructure ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Entropy Weight ◽  
Coordinated Development ◽  
Entropy Weight Method ◽  
Weight Method ◽  
Coordination Degree

Investment in transportation infrastructure is bound to promote the economic development . Coordinated development of transport and economy is the best state. This paper discusses the principle of coordinated development between traffic and economy, build evaluation index system of transport and economy development, use entropy weight method to calculate the composite score, draw traffic - economy coordination degree model. Then set Huanggang City of Hubei province example to illustrate the usefulness of the model.

Comprehensive Evaluation Index System and Method of Smart Distribution Grid

2014 ◽  
Vol 1070-1072 ◽  
pp. 1339-1345
Author(s):  
Hong Chen ◽  
Chun Ming Yang ◽  
Jun Xia Yang ◽  
Zhen Lu ◽  
Zhi Ying Lu ◽  
...  
Keyword(s):  
Smart Grid ◽  
Index System ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Distribution Grid ◽  
Entropy Weight ◽  
Index Set ◽  
Entropy Weight Method ◽  
Weight Method ◽  
Smart Distribution Grid

The core value of smart grid lies in the satisfaction extent of stakeholder’s demand, thus to construct an evaluation index system for smart grid it is necessary to construct a stakeholder’s demand index set at first to access the satisfaction extent of stakeholder’s demand reasonably and roundly. We divide the index system into the demand index set and assessment index set. As the former represents the macroscopic features while the latter represents the microscopic factors of the smart distribution grid. As for the calculation of combination weight, the DEMATEL-ANP-anti-entropy weight method and the improved Grey incidence approach is proposed. The DEMATEL-ANP-anti-entropy weight method is used for demand indices’ weight analysis, while the improved Grey incidence approach is put forward for the evaluation on assessment indices. Results of applying the proposed method in practical case shows that the proposed method is valuable in following aspects: scientifically assessing the intelligent development level and effectiveness of distribution grid, analyzing and recognizing the grid’s operation condition and weak link, giving reference to planning and construction of smart distribution grid, and so on.

Fuzzy comprehensive evaluation of maritime boundary delimitation schemes based on AHP-entropy weight method

2021 ◽  
pp. 1-13
Author(s):  
Degang Wang ◽  
Dongling Li ◽  
Li Sun ◽  
Zhenke Zhang ◽  
Jie Cheng ◽  
...  
Keyword(s):  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Entropy Weight ◽  
Angle Bisector ◽  
Maritime Boundary ◽  
Entropy Weight Method ◽  
Weight Method ◽  
Maritime Boundary Delimitation

There are 11 provinces along the coastal regions in the Chinese Mainland and the scientific division of marine management boundaries among different provinces within the extents of the territorial sea is of important significance in promoting the sustainable development of the marine economy in China. A fuzzy evaluation index system that includes 14 indices of three subsets was established based on a case study of maritime boundary delimitation between Jiangsu and Shandong Provinces to evaluate the advantages and disadvantages of maritime boundary delimitation and determine the optimal scheme and offset shortages in the current evaluation index system and evaluation methods. Combined weights of indices were calculated through the analytic hierarchy process (AHP) and entropy weight method. The comprehensive evaluation indices were used to evaluate three maritime boundary delimitation schemes, namely, historical boundary delimitation scheme, angle bisector delimitation scheme, and equidistance delimitation scheme. Results show that the equidistance delimitation scheme is relatively superior to the two other schemes. The evaluation index is 0.504761 and the evaluation grade is “good”. The angle bisector delimitation scheme is the second optimal. The evaluation index is 0.361641 and the grade is “moderate”. The historical boundary delimitation scheme is the poorest. The evaluation index is 0.135345 and the grade is “poor”. In the late optimization of maritime boundary delimitation schemes, more consideration should be given to people’s livelihood and protection of national maritime rights and interests. The fuzzy comprehensive evaluation method based on AHP-entropy weight can not only provide a quantitative top-down sequence of schemes in terms of quality and solve estimation problems in maritime boundary delimitation scheme, but also assist decision-makers to select the best scheme. Therefore, it possesses great application values.

scholarly journals A Study of Rural Logistics Center Location Based on Intuitionistic Fuzzy TOPSIS

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Yan Zhang ◽  
Yingying Zhang ◽  
Yanfeng Li ◽  
Sen Liu ◽  
Junai Yang
Keyword(s):  
Fuzzy Topsis ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Entropy Weight ◽  
Logistics Center ◽  
Intuitionistic Fuzzy ◽  
Center Location ◽  
Entropy Weight Method ◽  
Weight Method ◽  
Intuitionistic Fuzzy Topsis

In recent years, with the development of the rural e-commerce, the importance of rural logistics has been widely recognized. The selection of rural logistics center is a crucial part in products circulation, because an unreasonable location of rural logistics can cause a circulation problem and product waste. In this paper, we propose a rural logistics center location model based on the theory of intuitionistic fuzzy TOPSIS. First, we integrate the information according to experts’ score based on the evaluation index system. Second, we use the entropy weight method to determine the weight of each evaluation index. Third, we rank the results by using the intuitionistic fuzzy TOPSIS method. Finally, an illustrative example will be used to prove the validity and feasibility of the proposed method.

Research on Task Sequencing of Mixed Model Assembly Workshop Based on Improved AHP

2013 ◽  
Vol 813 ◽  
pp. 201-204
Author(s):  
Zhe Wang ◽  
Yan Fang Song ◽  
Geng Yan Cui
Keyword(s):  
Mixed Model ◽  
Comprehensive Evaluation ◽  
Influence Factors ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Entropy Weight ◽  
Task Sequencing ◽  
Entropy Weight Method ◽  
Weight Method ◽  
Mixed Model Assembly

The influence factors of task sequencing in mixed model assembly workshop is analyzed, and the production reasonable degree comprehensive evaluation index system is established with research of the evaluation index quantifying method\. The objective and subjective influence factors of task sequencing are analyzed, and the shortage of using AHP to sequence tasks alone has been pointed out. The improvement of AHP on the basis of entropy weight method has been researched, and task sequencing method of mixed model assembly workshop based on improved AHP has been proposed. The method has been verified in aero-engine assembly workshop, and the results show that it is feasible.

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