Set Pair Analysis Method Research Articles

Flood Season Division Based on Improved Set Pair Analysis

For the complex theory and the large amount of calculation of traditional flood season staging method, the set pair analysis method is proposed. In the same time, the indexes of traditional set pair analysis are regarded as the same faults in the process of the flood season staging. In order to overcome this shortcoming, variation coefficient method is used to calculate the weights of indicators, to improve the traditional set pair analysis method. Taking Chenjiawan reservoir as an example, we use the improved set pair analysis method for flood season staging, and compare the results with fuzzy set analysis method and set pair analysis method. The results indicate that the improved set pair analysis method is reliable and suitable for flood season staging.

Application of Set Pair Analysis Method Based on Entropy Weight to the Stability Evaluation of Salt Rock Gas Storage

Application of Set Pair Analysis Method Based on Entropy Weight to the Stability Evaluation of Salt Rock Gas Storage

Uncertainty analysis and prediction of river runoff with multi-time scales

Increasing water-issues demand that water resources managers know and predict the uncertain characteristics of river runoff well. In this paper, the fluctuating periods and local features of runoff with multi-time scales are analyzed by the empirical mode decomposition method. With the set pair analysis method, the uncertainty properties of runoff series with different multi-time scales are expressed. Meanwhile, cointegration theory is introduced to indicate the long-term equilibrium relationships between runoff series, and then the runoff prediction model is proposed based on the error correction model (ECM). The results show that the runoff series of Heihe River in northwest China exhibit complex relations with different periodic fluctuations and changing laws. The identity degree is the main relation between two runoff series, especially in the short period. Both the original series and decomposed components are all cointegrated, and the established runoff prediction model based on the ECM can simulate and predict river runoff well.

Application of set pair analysis method on occupational hazard of coal mining

As platforms age, there are increasing challenges to perpetuate their integrity. Currently, process of life extension and repair decision-making model in ageing offshore platforms which was based on DHGF algorithm was established built in order to make reasonable predictions about of life of ageing offshore platforms, and to make accurate repair decisions and to reduce their risks under uncertain and complicated environment. A decision on whether to install new equipment or recondition existing ones could then be taken in terms of optimal life-cycle cost, reliability, project budgets and safe state. There were 18 indicators based on Delphi method for evaluation system. Hierarchical structures were set up by analyzing and adjusting four dimensions - project factors, risk factors, load factors and structure factors which affect the ageing platform service state. Weighted subset was determined by Analytic Hierarchy Process (AHP). Then, we can calculate the gray weights using the gray model theory. The next step is that, it applied fuzzy mathematics to determine the grade evaluation of ageing platform. The evaluation criteria of life extension and repair decision-making model in ageing offshore platforms were established. The comprehensive score was calculated by a sequence of computational steps. Furthermore, life extension and repair decision-making reference table was set up and the period of life extension and repair grade in offshore platform was determined in the light of this table. Life extension and repair decisions for two platforms were made by using this new model and the results were compared with the traditional methods. Research results display that this model can describe the dynamic economic lifetime of ageing offshore platforms more accurately and give a new resolution for the research of life extension and repair decision-making under uncertain and complicated environment.

Set pair analysis for risk assessment of water inrush in karst tunnels

Considering the uncertain characteristics of water inrush in karst tunnels, the set pair analysis (SPA) method was newly applied in this study for risk assessment of water inrush. First, karst hydrology and engineering geological conditions were considered, and several main influencing factors were selected as evaluation indices, such as formation lithology, unfavorable geology, groundwater level and contact zone of dissolvable as well as other factors. Second, a set pair was established with the combination of the evaluation indices and the standards of risk grade. Then, the evaluation indices of water inrush were divided into two main types: economic and cost indices. Based on set pair analysis (SPA), the graded connection degrees of evaluation indices were calculated. Finally, the established risk evaluation model of water inrush with set pair analysis was applied to the Jigongling tunnel on the line of the Fanba expressway in China. The results not only are consistent with the results of the attribute mathematical theory, but also agree well with practical situations. In addition, the method of set pair analysis used in this study could provide relatively high accuracy when applied to risk assessment of water inrush in karst tunnels. Meanwhile, SPA is simple, feasible and easy to implement. The presented method has been validated as an effective method of risk assessment for water inrush, which also has good prospects for further engineering applications.

Risk assessment of water pollution sources based on an integrated k-means clustering and set pair analysis method in the region of Shiyan, China

Source water areas are facing many potential water pollution risks. Risk assessment is an effective method to evaluate such risks. In this paper an integrated model based on k-means clustering analysis and set pair analysis was established aiming at evaluating the risks associated with water pollution in source water areas, in which the weights of indicators were determined through the entropy weight method. Then the proposed model was applied to assess water pollution risks in the region of Shiyan in which China's key source water area Danjiangkou Reservoir for the water source of the middle route of South-to-North Water Diversion Project is located. The results showed that eleven sources with relative high risk value were identified. At the regional scale, Shiyan City and Danjiangkou City would have a high risk value in term of the industrial discharge. Comparatively, Danjiangkou City and Yunxian County would have a high risk value in terms of agricultural pollution. Overall, the risk values of north regions close to the main stream and reservoir of the region of Shiyan were higher than that in the south. The results of risk level indicated that five sources were in lower risk level (i.e., level II), two in moderate risk level (i.e., level III), one in higher risk level (i.e., level IV) and three in highest risk level (i.e., level V). Also risks of industrial discharge are higher than that of the agricultural sector. It is thus essential to manage the pillar industry of the region of Shiyan and certain agricultural companies in the vicinity of the reservoir to reduce water pollution risks of source water areas.

Research on the Comparison of Solar Power Generation with Different Technology Paths

To effectively cope with global climate change and the environment pollution problem, all countries are promoting low-carbon development actively. China is rich in solar energy resources, which has important influence on the sustainable development. Photovoltaic and thermal power generation were compared by constructing the comprehensive comparison model which is based on the interval weight and set pair analysis method. Then, their superiorities can be judged. The results of the study can provide strategic advice for investors in the solar-thermal and photovoltaic power generation to make decisions, which has far-reaching significance for them.

效率视角下的省域生态文明建设评价研究

PDF HTML阅读 XML下载 导出引用 引用提醒 效率视角下的省域生态文明建设评价研究 DOI: 10.5846/stxb201512232553 作者: 作者单位: 福州大学经济与管理学院,福州大学经济与管理学院 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金面上项目（71573114）；国家自然科学基金青年项目（71503049）；福建省社会科学规划项目（FJ2015C123）；福建省社科规划青年项目（FJ2015C231） Research on provincial ecological civilization construction evaluation under the efficiency perspective Author: Affiliation: School of Economics and Management, Fuzhou University,School of Economics and Management, Fuzhou University Fund Project: Research on provincial ecological civilization construction evaluation under the efficiency perspective 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:在界定生态文明概念的基础上，从省域层面入手，选取25个具有可操作性的评价指标，构建以国土空间优化、资源节约集约利用和生态环境保护为一级指标的生态文明建设评价指标体系，综合运用网络层次分析和集对分析等研究方法，定量研究我国省域生态文明建设绩效；在此基础上，将国土空间优化绩效、资源节约集约利用绩效和生态环境保护绩效作为产出指标，将就业人数、科学技术财政支出、节能环保财政支出作为投入指标，运用数据包络分析法测度各省（市）生态文明建设效率，分析指标投入冗余和产出不足情况，并修正评价绩效。研究表明：（1）规模效率低于0.6的省份共24个，占80%，规模效率不高是制约生态文明建设水平提升的重要障碍；（2）在生态文明建设投入冗余和产出不足方面，数值较高的省（市）在地理分布上具有明显的区域聚集性；（3）领先地区资源节约集约利用绩效平均分高达3.92，落后地区平均分仅为0.84，生态文明建设绩效的差异性在资源节约集约利用方面表现的尤为明显；（4）人口规模偏大、绿色生态空间建设滞后于经济发展、水资源利用效率不高是多数生态强省（市）的薄弱环节。 Abstract:On the basis of the definition of ecological civilization and the Opinions of the CPC Central Committee and the State Council on Accelerating the Ecological Civilization Construction and with reference to some scholars' and research institutions' contributions, we selected 25 operable evaluation criteria at provincial level in this study to construct an evaluation system of laterally comparable criteria with the primary criterion featuring land space optimization, resource intensive use and ecological environmental protection, and to conduct quantitative analysis of the performance of China's provincial ecological civilization construction by joint use of analytic network process (ANP) and set pair analysis (SPA) method. On this basis, with the performances of land space optimization, resource intensive use, and ecological environmental protection as the output indicators and the number of employees, fiscal expenditures on science and technology, on energy saving and environmental protection as the input indicators, we measured the ecological civilization construction efficiency of provinces (or municipalities) and analyzed indicators input redundancy and output deficiency with data envelopment analysis(DEA), and revised the evaluation of performance. We have also done a great deal of work on exploratory research for the ecological civilization construction pursuing both quantity and quality. It shows that:(1) there are 24 provinces with scale efficiency lower than 0.6, accounting for 80%. Low scale efficiency is a major obstacle to improve the construction of ecological civilization in most regions; (2) when it comes to input redundancy and output deficiency in ecological civilization construction, provinces (or municipalities) with higher scale efficiency are obviously regionally concentrated in geographical distribution; (3) the leading regions have an average score of 3.92 in the performance of resource intensive use, while the backward regions only get 0.84 on average. The difference is evident in the aspect of resource intensive use; (4) large population, green ecological space construction that lags behind the economic development and low water utilization efficiency are still the weaknesses of the ecologically strong provinces (or municipalities). 参考文献 相似文献 引证文献

A New Systematic Approach to Vulnerability Assessment of Innovation Capability of Construction Enterprises

The purpose of this research is to study the vulnerability of construction enterprises’ innovation capabilities (CEIC) and their respective primary influencing factors. This paper proposed a vulnerability system framework of CEIC, designed two comprehensive assessments for analysis, namely the entropy and set pair analysis method (E-SPA) and the principle cluster analysis and SPA method (P-SPA), and compared grades to verify the vulnerability assessments. Further, the paper quantitatively assessed the major influencing factors in facilitating management, reducing vulnerability, and improving the ability of construction enterprises to respond to changes in the construction industry. The results showed that vulnerability could be effectively and systematically evaluated using E-SPA. However, managing or reducing entrepreneurial sensitivity and improving the ability to respond was critical to supporting sustainable CEIC. The case studies included in this paper suggested that in ensuring sustainable CEIC, companies should concentrate on highly educated human resources, R&D investments, intellectual property related innovations, and government support. This research provided a practical framework and established a sustainable strategy for companies to manage their vulnerability in developing innovation capability. In addition, this research presented an innovative and effective way to quantitatively analyze vulnerability which offered a foundation to signify a new paradigm shift in construction sustainable development.

Superior coexistence: systematicALLY regulatING land subsidence BASED on set pair theory

Abstract. Anthropogenic land subsidence is an environmental side effect of exploring and using natural resources in the process of economic development. The key points of the system for controlling land subsidence include cooperation and superior coexistence while the economy develops, exploring and using natural resources, and geological environmental safety. Using the theory and method of set pair analysis (SPA), this article anatomises the factors, effects, and transformation of land subsidence. Based on the principle of superior coexistence, this paper promotes a technical approach to the system for controlling land subsidence, in order to improve the prevention and control of geological hazards.

An integrated method of set pair analysis and association rule for fault diagnosis of power transformers

Fault diagnosis of power transformers is crucial to the healthy operation of transformers. In order to enhance its accuracy and reliability, a new fault diagnosis method based on Set Pair Analysis (SPA) and association rules was proposed in this paper. Via analyzing the relationship of fault symptoms and fault types, the corresponding association rules could be established. Via computing the support degrees and confidence degrees of the association rules, the constant weight coefficient of each symptom and the variable weight coefficient of each type could be obtained. The diagnosis method could avoid the subjective defects effectively. Via introducing the concept of subordinate degree, the connection degrees of each fault type and the whole running state of transformer could be obtained. This method could also improve the accuracy of uncertainty factors of transformer fault diagnosis. Experimental results of the test substation proved this method had a higher accuracy by comparing with both association rules and SPA.

An improved method for integrated water security assessment in the Yellow River basin, China

Water is a major limiting factor of human survival and social economic development. Water security is also important for the ecological system. In this paper, the water security assessment index system of the Yellow River basin was developed based on three subsystems: the water resources subsystem, the water environment subsystem and the social economic subsystem. The integrated assessment of water security was developed based on the combination of set pair analysis (SPA) and fuzzy analytical hierarchy process (FAHP) as well as technique for order preference by similarity to ideal solution (TOPSIS), gray relational analysis (GRA), vague sets (VS) and matter element (ME) models. First, fuzzy cluster analysis method was used to check the consistency of all the models before and after implementing the integrated assessment. Secondly, the ranking values of four single assessment models (i.e., TOPSIS, GRA, VS and ME models) were analyzed by SPA method to get the consistency connection degree. Then FAHP was constructed to describe the relative importance of the four different single models when determining the weight coefficient in the integrated assessment model. And lastly, the integrated assessment model of water security was developed based on the ranking values and weight coefficients of the selected single assessment models. The conclusion of the developed integrated assessment model which was applied in the Yellow River basin showed that Sichuan province was at security level; Henan, Shandong, Qinghai and Shaanxi provinces were at the threshold security level; Shanxi, Gansu and Inner Mongolia provinces were at the relative insecurity level; Ningxia province was water no secure. The integrated assessment results showed that the improved integrated model presented in this paper had relatively better performance than single assessment models. The intention of this paper was to provide an integrated assessment model, propose potential countermeasures, and achieve sustainable water utilization in the Yellow River basin.

Application of Cloud Theory and Set Pair Analysis Coupled Model for Evaluating Environmental Carrying Capacity in Tianjin

Following the development of national economy, environmental pollution and ecological hazards has been resulted from the pollutant discharge and reclamation etc. So it is very important for evaluating the environmental carrying capacity for guiding the environmental management and control. In this paper, a systematic assessment model with detailed procedure for environmental carrying capacity is proposed, based on the combination of set pair analysis method and cloud theory. The membership degree function obtained from bell function in cloud theory is used for connection degree function in set pair analysis method. The normalization means of membership degree has advantageous of improving the reasonability of membership space. The calibration results of case study work well in Tianjin Binhai New District. This shows the coupled model has advantages of concision, easy-operation and high precision of set pair analysis method, and the randomness and ambiguity of assessment indexes’ membership can be reflected in the assessment procedure by using the cloud theory, so the assessment results are reliable and practical significance.

Evaluation on Architecture Engineering Quality Based on Set Pair Analysis Method

Based on set pair analysis theory, set pair analysis model of the evaluation on the architecture engineering quality had been set up. The identical-discrepancy-contrary system about the correlation degree of evaluation indexes and evaluation factors of the evaluation on the architecture engineering quality had been analyzed. The result has indicated that set pair analysis model is not only easy calculation but also has merits of high usability of information in the course of evaluation, objective and reasonable system and confidence, etc. This model is applied to analyze the evaluation on the four architecture engineering quality in Guangdong. The application shows that the model is effective and practical.

Comparative Study on Eco Tourism Development Potential between the Yellow River Delta and the Nansi Lake Wetland Nature Reserve

The wetland nature reserve has the contradiction between tourism development and environmental protection. Eco tourism is the route one must take to realize the tourism sustainable development of area wetland nature reserve. Measuring the potential development of ecological tourism through quantitative method has great reference value and guiding significance for promoting the rational tourism planning and development of wetland nature reserve. This paper selects three aspects of ecological tourism demand potential, ecological tourism supply potential, ecological tourism security potential, which influence and restrict the ecological tourism potential of nature reserve to construct evaluation index system of the potential for wetland eco tourism development, and uses the set pair analysis method to carry out a comparative evaluation between the Yellow River Delta and the Nansi Lake Wetland Nature Reserve. Studies shows that there are some differences in ecological tourism demand potential, ecological tourism supply potential and ecological tourism security potential.

Integrated risk assessment method of waterlog disaster in Huaihe River Basin of China

Regional waterlog disaster integrated risk system, affected by natural, social, and economic systems and its combination relationship, is a complex system with certain structure and function. Waterlog disaster integrated risk results from the combined effects of regional environment, impact factors, vulnerability, and disaster-reducing capability of flood hazards in the drainage area. Waterlog disaster integrated risk system can be divided into four subsystems of hazard, vulnerability, disaster-reducing capability, and disaster conditions. Evaluation indexes are selected using fuzzy analytic hierarchy process method, and the evaluation index system is established. Then, the waterlog disaster integrated risk evaluation model is proposed based on set pair analysis method. Taking Huaihe river in Anhui Province of China as the typical area in this study, the results show that the proposed approach is able to obtain the spatial distribution characteristics of waterlog hazard, vulnerability, mitigation capabilities, and integrated disaster risk within the study area. From the quantitative point of view, identification of the areas with high flood risk can provide a scientific basis for the flood management and technical support.

River ecosystem assessment and application in ecological restorations: A mathematical approach based on evaluating its structure and function

The river is an essential part of water resources, which has unique ecological structure and function. With the rapid socio-economic development, the improper use of water resources has led to a series of structural and functional decline of the river system, such as water pollution, environmental degradation and river shrinkage. How to restore damaged river ecosystems to an ecologically healthy status has become one of the important environmental issues, which is the key to achieve the goal of productivity improvement, ecosystem balance and sustainable development. And also, the structure and function of the river ecosystem should be pre-assessed before the restoration. In this paper, the Liangshui River, a tributary of Daling River in the arid region of western Liaoning Province, is selected as a study site. An assessment index system involving 21 defined indices on structure and function of river ecosystem is firstly established. A mathematical method for comprehensive assessing the structure and function of river ecosystem is proposed based on the Set Pair Analysis (SPA) and Quadrant Method. Then, the evaluation value is gained at the ecosystem level. The result shows that the assessment value of structure and function is −0.513 and −0.208, respectively, which means that the Liangshui River ecosystem is defective in structure and sub-healthy in function. It is necessary to choose potential development emphasized on the structurally rehabilitating of the Liangshui River ecosystem. Based on the above, ecological engineering measures and suggestions are recommended to preserve the health of river ecosystem.

The Evaluation Model of Bridge Construction Safety Management Variable Fuzzy Sets

Basing on the index system and evaluation data of bridge construction safety management status, this paper puts forward the relative difference function of variable fuzzy set by the method of set pair analysis, and develops the fuzzy comprehensive evaluation dynamic model of bridge construction safety management status. This model was applied to assessment of a bridge construction safety management status, and achieved the desired results.

Risk Assessment of the Debris Flow Gully in Tibet Southeast by Set Pair Analysis Method

Risk assessment of debris flow is the core content for debris flow disaster forecasting and prevention work. And then, risk assessment of debris flow also becomes the key method in potential debris flow hazards forecast. However, kinds of hazard-affected indictors will be referred during the risk assessment process. In this study, set pair analysis model for risk assessment of the debris flow gully in Tibet southeast is established. With the model final outputs, it can successfully solve the problem of considering all the weight values of the hazard-affected indictors in debris flow evaluation system. Finally, risk assessment of typical debris flow gullies in Tibet southeast area are conducted out by the set pair analysis model, and the model outputs also give a well agreement to the actual.

Public transit network planning in small cites considering safety and convenience

Scientific and rational public transit network planning, not only can effectively alleviate city traffic congestion, but also can reduce the risk of accidents. First, based on the data of residents’ travel survey, this article employs the multiple regression method to forecast the traffic generation and adopts the double-constrained gravity model to forecast the residents’ travel distribution of small cites. Second, by aiming at public transit planning objectives, the unsafe roads for public transit are screened, and the public transit trip-mode sharing rate is set as the interval value. According to the interval value, the public transit trip-mode sharing rate is divided into three cases, and the three alternatives of public transit network are calculated based on the network optimization method and the public transit-oriented development model. Next, the alternatives are evaluated by the set pair analysis method, and the optimal scheme is selected. Finally, this article takes the public transit network planning of Huaiyuan County in Anhui Province as an example, and the results show the proposed method is feasible.