Grassland resource evaluation based on improved bp network model and analytic hierarchy process

2020 ◽  
pp. 1-12
Author(s):  
Zhou Jiang ◽  
Zhenwu Wei
Keyword(s):  
Sustainable Development ◽  
Analytic Hierarchy Process ◽  
Carrying Capacity ◽  
Index System ◽  
Evaluation Index System ◽  
Analytic Hierarchy ◽  
Bp Network ◽  
Resource Evaluation ◽  
Environmental Carrying Capacity ◽  
Hierarchy Process

Grassland resources are an important part of land resources. Moreover, it has the functions of regulating the climate, windproof and sand fixation, conserving water sources, maintaining water and soil, raising livestock, providing food, purifying the air, and beautifying the environment in terrestrial ecosystems. Grassland resource evaluation is of great significance to the sustainable development of grassland resources. Therefore, this paper improves the BP neural network, uses the comprehensive index method to calculate the weights in the analytic hierarchy process, and constructs a water resources carrying capacity research and analysis system based on the entropy weight extension decision theory. Meanwhile, this paper analyzes different levels of resource and environmental carrying capacity to achieve the purpose of comprehensive evaluation of resource and environmental carrying capacity. In addition, based on the theory of sustainable development, under the guidance of the principle of index system construction, this paper studies the actual situation of grassland resources and the availability and operability of data, and combines with the opinions given by experts to form an evaluation index system of grassland resources and environmental carrying capacity. Finally, through the actual case study analysis, it is concluded that the model constructed in this paper has a certain effect.

Application of Analytic Hierarchy Process and Vector Modulus Method in Evaluation of Water Environmental Carrying Capacity in Jiaozhou City

2015 ◽  
Vol 1092-1093 ◽  
pp. 1123-1129
Author(s):  
Hui Bai ◽  
Yan Chen ◽  
Yan Ling Liu ◽  
Wen Yan Dai
Keyword(s):  
Analytic Hierarchy Process ◽  
Carrying Capacity ◽  
Water Environment ◽  
Social Economy ◽  
Evaluation Index System ◽  
Analytic Hierarchy ◽  
Environmental Carrying Capacity ◽  
Modulus Method ◽  
Hierarchy Process ◽  
Water Environmental Carrying Capacity

In this paper, the water environmental carrying capacity (WECC) was quantitatively analyzed considering the comprehensive effect of economy, society, resources, environment, and technology in Jiaozhou, Shandong province. An evaluation index system was established and applied in the evaluation of WECC in Jiaozhou from 2007 to 2011 with analytic hierarchy process (AHP) and vector modulus method. The results indicated that the WECC index was at low level in the range of 0.061-0.080 with the decreasing trend firstly but then increasing trend gradually, which shows that the water resources shortage is becoming the key factor restricting the development of Jiaozhou. The results conform to the real condition of Jiaozhou and the research provides the scientific methods and suggestions for the coordinated development of social economy and water environment protection.

scholarly journals Research on Supplier Selection of Prefabricated Building Elements from the Perspective of Sustainable Development

2021 ◽  
Vol 13 (11) ◽  
pp. 6080
Author(s):  
Yinghui Song ◽  
Junwu Wang ◽  
Feng Guo ◽  
Jiequn Lu ◽  
Sen Liu
Keyword(s):  
Sustainable Development ◽  
Analytic Hierarchy Process ◽  
Supplier Selection ◽  
Equation Model ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Analytic Hierarchy ◽  
Building Element ◽  
Hierarchy Process ◽  
Prefabricated Building

Prefabricated building is an efficient building mode. Compared with the traditional building mode, the prefabricated building has advantages of less pollution, high construction efficiency, being more labor-saving, and economy, which is in line with China’s sustainable development strategy. This paper proposes a supplier selection evaluation model based on the mechanism equation model (SEM) and intuitionistic fuzzy analytic hierarchy process (IFAHP). Based on a detailed literature review, 300 structured questionnaires were distributed to the relevant enterprises, and an evaluation index system of prefabricated building element suppliers was built. With the fitting and modification process using a structural equation model, and assist of a path factor, an evaluation index system for evaluating the prefabricated building element suppliers was finally obtained. Finally, the intuitionistic fuzzy analytic hierarchy process was used to establish a selection model of prefabricated element suppliers, and the prefabricated element suppliers of Shuangyashan prefabricated construction projects were analyzed as a case study. The results show that the following factors have the most significant impact on supplier selection (from high to low): quality, economy, long-term cooperation, after-sales, and transportation. This study had a comprehensive consideration of the influencing factors existing in the whole selection process and should provide a valuable reference for the sustainable development of prefabricated construction engineering.

scholarly journals Study on Evaluation Index System of Urban Traffic Improvement Based on Analytic Hierarchy Process

2021 ◽  
Vol 237 ◽  
pp. 04029
Author(s):  
Xiaolei Zheng ◽  
Yong Yin ◽  
Tao Yang
Keyword(s):  
Analytic Hierarchy Process ◽  
Index System ◽  
Quantitative Methods ◽  
Urban Traffic ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Analytic Hierarchy ◽  
Traffic Demand ◽  
Qualitative And Quantitative Methods ◽  
Hierarchy Process

The double development of urbanization and motorization has made the traffic demand of our country grow rapidly and diversified. the improvement of urban traffic has become an important condition for the sustainable development of the city. Based on the analytic hierarchy process (AHP), this paper establishes the evaluation index system of urban traffic improvement by comparing the importance of indexing by experts. It is found that improvement of road network, optimization of public traffic and improvement of intersection are the most important in urban traffic improvement. the intersection of the most important level of service. By using qualitative and quantitative methods, the Likert scale was used to classify the results and the four-quadrant method was used to analyze the urban traffic improvement evaluation index system.

Construction of the Core Competitiveness Evaluation Index System of Engineering Consulting Firm Based on Fuzzy Analytic Hierarchy Process (FAHP)

2013 ◽  
Vol 357-360 ◽  
pp. 2489-2493
Author(s):  
Long Jiang Shen ◽  
Lian Fa Ruan ◽  
Jun Bo Ye
Keyword(s):  
Analytic Hierarchy Process ◽  
Index System ◽  
Evaluation Index System ◽  
Fuzzy Analytic Hierarchy Process ◽  
Evaluation Index ◽  
Core Competitiveness ◽  
Analytic Hierarchy ◽  
Engineering Consulting ◽  
The Core Competitiveness ◽  
Hierarchy Process

According to the characteristics of the engineering consulting industry, this paper builds engineering consulting firms core competitiveness evaluation index system, and uses fuzzy analytic hierarchy process (FAHP) to determine the indexes weight. We hope to provide a reference for the establishment of core competitiveness of the engineering consulting firm.

Evaluation of the City Integrated Emergency Response System Based on the Analytic Hierarchy Process

2012 ◽  
Vol 461 ◽  
pp. 830-834 ◽  
Author(s):  
Jing Jing Wan ◽  
Ying Hua Song
Keyword(s):  
Analytic Hierarchy Process ◽  
Emergency Response ◽  
Index System ◽  
Evaluation Index System ◽  
Calculation Formula ◽  
Analytic Hierarchy ◽  
Emergency Response System ◽  
Response System ◽  
Hierarchy Process ◽  
The City

The city integrated emergency response system achieved consolidated receive alarm and command which cross-regional, inter-departmental and cross-force, it can conduct emergency rescue or relief disaster timely, orderly and efficiently. This paper mainly used the method of analytic hierarchy process (AHP), analysis the city integrated emergency response system through the establishment of evaluation index system, get the calculation formula of its comprehensive score, and take Nanning city integrated emergency response system for example, apply and prove the index system and calculation formula.

scholarly journals Comprehensive Evaluation of Regional Logistics Competitiveness Considering Multiple Reference Points and Dynamic Index Improved Analytic Hierarchy Process

Symmetry ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 847
Author(s):  
Guodong Liu ◽  
Jianjun Zhu ◽  
Xiaodi Liu
Keyword(s):  
Analytic Hierarchy Process ◽  
Index System ◽  
Comprehensive Evaluation ◽  
Reference Value ◽  
Reference Points ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Analytic Hierarchy ◽  
Regional Logistics ◽  
Hierarchy Process

The development of the regional economy cannot be separated from the support of regional logistics, as the scientific decisions of regional logistics are helpful to promote the healthy development of the regional economy. The comprehensive evaluation of regional logistics competitiveness is the premise and foundation of regional logistics scientific decision-making; the evaluation index system, evaluation data, and index weight are the key links affecting a comprehensive evaluation. In order to improve the quality of a comprehensive evaluation, the study aims at addressing problems such as the evaluation index system of regional logistics competitiveness being complex and scattered, the normalized distribution of the evaluation data being extremely asymmetric and seriously deviating from the normal distribution, and the logic of calculating index weights by the analytic hierarchy process (AHP) not being accurate. To do this, a triangle model of regional logistics competitiveness is constructed based on Porter’s diamond model, and the evaluation index system of regional logistics competitiveness is refined from the three dimensions of resource supply, logistics service, and market demand. Based on the concept of symmetry theory, a normalization method of segmental mapping with quartiles as multiple reference points is proposed, which improves the distribution rationality, symmetry, and distance discrimination of normalized data. The dynamic index scale is used to determine the scale of the analytic hierarchy process, and the evaluation matrix is constructed based on the importance level grading table; the index weights are directly solved without a consistency check, which improves the logical accuracy of a subjective evaluation. Based on the data of segment mapping, the comprehensive evaluation value of the evaluation object is calculated, and the competitiveness of regional logistics is compared and ranked, which improves the differentiation and consistency of the results. Through the comparative analysis of the calculation results, it was proven that the improvement of the data standardization method is necessary when the range is too large. The method in this paper can make the distribution of data standardization with a range too large closer to the normal distribution. It was found that the ranking of regional logistics competitiveness is highly consistent with the total social logistics, and that the total amount of regional logistics has an important reference value for the competitiveness of regional logistics. The ranking calculated by the indicators and methods in this paper has a certain reference value for regional logistics decision-making.

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