Grey Fuzzy Comprehensive Evaluation Method Research Articles

Urban community security system model from the perspective of resilience: a study on Chinese cities

To enhance urban governance and bolster community disaster resilience, it is urgent to innovate and develop an urban community security system to cope with the complex and volatile social security situation. From the perspective of resilience, the concept, layout, and structure of the security system are organized. Considering the current situation and development trend of the social security system, and based on the constructed cost-capability model, the cost and benefit of the two modes are analyzed and compared. Subsequently, from the perspective of multi-agent participation, a game model between governments and enterprises is constructed. The evolutionary stability strategies of enterprises are analyzed, and simulation analysis is conducted on the factors influencing enterprises. Finally, to propose targeted improvement measures based on the community security capabilities of different communities, a grey fuzzy comprehensive evaluation method is employed. The community security comprehensive capabilities of the top 10 cities in China are quantitatively analyzed and evaluated. The results indicate that the urban community security system from a resilience perspective is more comprehensive compared to the traditional security system. Adopting mode 2 is relatively effective to improving government emergency management capability. In a certain range, reducing C, increasing F, reducing R2, and increasing h can achieve the effect of promoting enterprise to participate in construction. The urban community security capability is within the upper-medium level in general, close to the level of good. The urban community security system constructed in this paper can provide a theoretical basis for the government to formulate policies of the urban community security system and serve as a reference for strengthening the comprehensive capability of the urban community security.

Risk Assessment and Countermeasures of Logistics Terminal Distribution under Public Health Emergencies

In recent years, the frequent occurrence of public health emergencies has affected people’s daily lives. In response, this paper evaluates the risk of logistics terminal distribution and puts forward the corresponding countermeasures. Firstly, this paper summarizes relevant literature and analyzes the characteristics of public health emergencies and logistics terminal distribution. This paper constructs the risk index system of logistics terminal distribution under public health emergencies for the first time. Secondly, this paper conducts a questionnaire survey on a domestic e-commerce enterprise. In this paper, the intuitionistic fuzzy entropy weight method is applied to the obtained data to determine the weight of risk index. Finally, this paper adopts the grey fuzzy comprehensive evaluation method to evaluate the risk index of logistics terminal distribution under public health emergencies. This paper takes the impact of public health emergencies into account for the risk of logistics terminal distribution for the first time. Some suggestions are provided for preventing the logistics terminal distribution from stagnation and paralysis when public health emergencies occur. This paper supplements the existing research in this field.

Research on School Uniform Style Design and User Experience Based on Virtual Technology

Abstract The development of Virtual Reality (VR) technology has revolutionized many fields, especially in the growing application in fashion and design. Through virtual technology, designers can instantly present the design effect of school uniforms without the need for physical prototypes, and at the same time, collect user feedback to optimize the design scheme. This study uses virtual reality technology to establish a platform for designing and presenting school uniforms. Through experimental design and user research, this technology’s application effect in the school uniform design field is evaluated. VR technology resulted in a 30% increase in the efficiency of designers in designing school uniform styles and a 25% increase in user satisfaction. The platform’s user experience was assessed using the gray fuzzy comprehensive evaluation method, and the score reached 3.56 (out of 5), indicating the overall recognition of the platform by users. The virtual technology used in this study can significantly improve the efficiency and quality of school uniform style design and enhance user experience.

A Study of the Impact of Combining Digital Marketing and Virtual Reality Technology on the Online Shopping Experience

Abstract Virtual reality technology has brought a new round of information technology revolution for marketing due to its dual potential in marketing efficiency and experience. After combing the applications of the combination of digital marketing and virtual reality technology, this paper takes a store’s VR marketing campaign as an example, selects the relevant evaluation indexes, and, after assigning values to the indexes’ weights, applies the gray fuzzy comprehensive evaluation method to assess the integration effect of digital marketing and virtual reality technology in the sample VR marketing campaign. Afterward, the theoretical model and research hypotheses regarding VR digital marketing’s influence on online purchase experience are proposed, and structural equation modeling is employed to validate the correlation. The results indicate that the integration effect of VR marketing campaigns in the sample stores is above average (75.93 points). The combination of digital marketing and virtual reality technology positively stimulates users’ demand motivation and experience perception (P<0.001), which in turn positively affects users’ satisfaction level and the online shopping experience as a whole of demand motivation, experience perception, and satisfaction level collectively affects users’ post-participation behavior. The combination of digital marketing and virtual reality technology can enhance users’ purchasing experience and further improve publicity conversion and brand impact.

Research on an evaluation index system and evaluation method of green and low-carbon expressway construction.

To promote the development of green and low-carbon expressway construction, an evaluation index system and associated evaluation method for the construction of green and low-carbon expressways suitable for multiple bridges and tunnels is proposed. The evaluation index system was created from three layers: the goal layer, the criterion layer, and the indicator layer. The criterion layer includes 4 first-level indices and the indicator layer includes 18 second-level indices. The weight of each index in the criterion layer and indicator layer is determined using the improved analytic hierarchy process (AHP) method, and green and low-carbon expressway construction is then graded using the gray fuzzy comprehensive evaluation method combined quantitative indices with qualitative indices. The method with the selected indices is then verified in a case study on the Huangling-Yan'an Expressway, with the evaluation grade being "Excellent" and the evaluation value being 9.1255. The proposed evaluation method can provide theoretical and practical guidance for effective evaluation for green and low-carbon expressway construction.

Research on the Maturity Evaluation Model of Enterprise Safety Culture.

To regulate the safety behavior of employees and improve the occupational safety level of enterprises. Based on the perspective of safety culture, this paper designed an index system based on the four dimensions of safety concept, system, behavior, and physical culture, and it explored a new quantitative assessment method of safety culture level by introducing the concept of maturity into the evaluation of safety culture using the grey fuzzy comprehensive evaluation method. Combining the characteristics of enterprise safety culture, safety culture was divided into five levels, including original level, starting level, development level, completion level, and leading level, and the maturity model of enterprise safety culture was established. Finally, taking an enterprise to be evaluated as an example, the evaluation steps and application of evaluation results were introduced. The results showed that the evaluation model of enterprise safety culture maturity constructed in this paper provides systematic measurement indexes and scientific evaluation methods for evaluating the safety culture maturity of enterprises.

Study on the Impact of Farmland Transfer on the Welfare of Transferring-out Farmers Under the Background of Rural Revitalization in Shanxi

Under the background of rural revitalization, farmland transfer has become an important way to promote agricultural scale and modern management. While the farmland transfer promotes the concentration of farmland and the transformation of agricultural production methods, what is the impact of farmland transfer on farmers’ welfare? Based on the rural survey data of Xinzhou in Shanxi, this paper used the grey fuzzy comprehensive evaluation method to measure the changes of farmers’ welfare before and after farmland transfer. The study found that the overall welfare level of farmers in three counties of Xinzhou was improved after farmland transfer. The welfare level of farmers was increased by 7.63%, from 0.367 to 0.395. However, the changes in various welfare elements were quite different, and some welfare levels were even declined. After farmland transfer, the welfare distribution gap of farmers transferred out farmland has a tendency to expand.

Safety evaluation of mine roof accident based on grey fuzzy comprehensive evaluation

By analyzing the risk assessment methods of roof accidents at home and abroad, this paper summarizes the research status of risk assessment in this area, and analyzes the significance of risk assessment of mine roof accidents. The risk identification of roadway collapse accident is carried out from four aspects -- human, material, environment, and management, and the risk evaluation index system is established, including human unsafe behavior, material unsafe state, management factors and environmental factors. On this basis, the weight of index set is determined by grey relation analysis, and the fuzzy comprehensive evaluation model is obtained by combining the fuzzy comprehensive evaluation method. Taking a coal mine as an example, this paper makes an empirical study of risk assessment and puts forward corresponding countermeasures according to the results of comprehensive assessment. The results show that the safety level of the mine is very safe, so it is feasible to use the grey fuzzy comprehensive evaluation method to evaluate the safety of the mine, which can provide reference for the same kind of mine.

A risk evaluation model for channel navigation based on the gray-fuzzy theory

In view of the fuzziness and randomness of the safety evaluation of the channel navigation environment, a risk evaluation model of the channel navigation is established with the set-valued statistics and the gray theory. A safety evaluation index system of channel navigation consisting of first-level indexes for the natural environment, navigation conditions, and traffic environment as well as 12 s-level indexes were established on the basis of comprehensively analyzing factors influencing the safety of the channel navigation environment. The weight of each evaluation index is determined through the model utilizing the set-valued statistics; also, the evaluation sample matrix is determined to realize the initial construction of the environmental scenario of channel navigation; and the safety of the channel navigation environment is evaluated quantitatively with the gray fuzzy comprehensive evaluation method. Taking Guangdong inland channel as an example, the result shows that the safety evaluation method based on the set-valued statistics and the gray fuzzy theory features simple calculation as well as objective and accurate results, which is convenient for practical application.

The application research of multi-dimension decision-making of bank's microfinance performance evaluation using rough set and grey fuzzy approach

Microfinance steps into a rapid growth stage and becomes a very important business of Chinese commercial banks. According to characteristics of Chinese microfinance and principals of balanced scorecard, this study designed the performance evaluation system from five dimensions and analysed the performance of microfinance of bank in combination with the rough set and fuzzy comprehensive evaluation method. To develop an objective and scientific evaluation system, this study used rough set theory to determine each indicator's objective weight by introducing information volume to define the importance conception. Then, this study built the grey fuzzy comprehensive evaluation method which is based on the rough set and used the matrix of grey fuzzy evaluation and the weight vector to process fuzzy calculation and normalisation and finally got the fuzzy evaluation result. This study evaluated the performance of small and micro enterprise microfinance of eight branches of China Harbin Bank. By using above system, this study got a better evaluation results, proved the effectiveness and practicability of the evaluation system.

Safety Comprehensive Evaluation of Spacecraft Assembly Process Based on Grey-Fuzzy Method

Multilevel evaluation indicator system for spacecraft assembly safety was built, considering six aspects: operators, process equipment, operating environment, operation types, objects to be operated, and emergency measures. Based on that, a grey-fuzzy comprehensive evaluation approach was proposed to support the spacecraft assembly safety evaluation. In the approach, analytic hierarchy process and grey degree were applied to construct weight matrix, and the principle with which the appropriate memberships could be determined was taken as a basis for creation of grey-fuzzy comprehensive evaluation matrix. The docking assembly, a typical stage in spacecraft assembly process, was taken as the case study to evaluate its safety level by the proposed grey-fuzzy comprehensive evaluation method, and it was confirmed that the result is coherent with the reality of the accident statistics. The evaluation results can be utilized as a technical basis for developing safety and protective measures, perfecting risk management, and furthermore lowering the risk to minimize economic loss and behind-schedule of project.

Reliability Evaluation of Thermal Power Units Operation Based on Grey Fuzzy Theory

The thermal power units operational reliability is the fundamental guarantee of smooth operation of electricity system. According to the problem of thermal power units operational reliability evaluation, a comprehensive evaluation method is put forward based on grey fuzzy theory. Firstly, this paper establishes an evaluation index system by the analysis of factors affecting the reliability of thermal power units. And then a reliability evaluation model of thermal power units operation is built based on grey fuzzy comprehensive evaluation which combined with the grey cluster theory and the fuzzy algorithm. At last, the numerical example is shown to verify the feasibility of the grey fuzzy comprehensive evaluation method.

Application of the Grey Fuzzy Comprehensive Evaluation Method in Energy Saving Evaluation of Large-scale Public Buildings

Application of the Grey Fuzzy Comprehensive Evaluation Method in Energy Saving Evaluation of Large-scale Public Buildings

An Evaluation of the Arctic Route’s Navigation Environment

Along with the development of global warming, the commercial navigation of the Arctic route is getting even more likely, and the whole world is paying more and more attention to it. The analysis of the factors that affect the navigation environment together with the evaluation of the Arctic route’s navigation environment will have an important reference value for the further study of the Arctic route. Thus, based on the summarization of the status and the navigation accident statistics of the Arctic route, the paper establishes an evaluation index system and makes a preliminary evaluation of the Arctic route's navigation environment through a grey fuzzy comprehensive evaluation method. Since a lack of accurate data, the indexes' value is given by the expert grading method. Through analysis, we come to conclude that the hydrological factors, navigation aids and information factors are the main factors that affect the Arctic route's navigation environment. Besides, the sea ice concentration, icebreaker and navigation experience are individually the primary factors of the hydrological environment, navigation aids and information environment. As the North Pole goes warming, the hydrological environment will gradually transform, therefore, the navigation aids and information environment in the Arctic will gradually become the limiting factors of the Arctic route's navigation environment. The results of this paper can provide some beneficial reference for the utilization and supervision of the Arctic route.

The Study of CIQ Inspection Rate's Setting Problem Based on Gray-fuzzy Comprehensive Evaluation Theory

Inspection is not only one of the most significant duties, but the important prerequisite for going through Customs. Setting the inspection rate scientifically can not only solve the contradiction between the “check on” and “service” for CIQ (CHINA ENTRY-EXIT INSPECTION AND UARANTINE)site inspection personnel, but can highlight the key of inspection and enhance the ratio of discovering, achieving the optimum allocation of CIQ's limited human and material resources. In this article, from the characteristics of inspection risk evaluation themselves, considering the setting problem of check rate at from the angle of data mining, construct an index system rationally and objectively. On the basis of Fuzzy theory, evaluate the risk of the inward and outward goods with the grey-fuzzy comprehensive evaluation method, and establish the inspection rate scientifically.

The Evaluating Method for Module Partition Schemes of Complex Product Systems

Module partition of Complex product system (CoPS) usually produces a number of schemes, and how to choose the best one amongst the themes is very important. In this research, according to the features of CoPS, the multi-level evaluation indexes are built based on the DFX (design for X) method, which can evaluate the scheme comprehensively. The weight of indexes are obtained with the method of analytical network process. Then, the multi-level grey fuzzy comprehensive evaluation method is proposed to make the well-chosen decision based on the DFX multi-objective evaluation model. The evaluation method are illustrated using the partition schemes of the experiment platform of a bevel gearbox.