Port investment value evaluation method based on cloud model-super-efficiency interval DEA
A technology of value assessment and cloud model, applied in the field of marine engineering, can solve problems such as the value and risk of overseas ports from a quantitative perspective, and achieve the effect of quantitative assessment and efficiency evaluation in complex environments
Pending Publication Date: 2020-09-22
NAT UNIV OF DEFENSE TECH
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Problems solved by technology
[0002] At present, there are few studies on the value and risk of overseas ports from a quantitative perspective, especially the lack of research that organically unifies the risks and value benefits of overseas port investment to rank port investment priorities
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[0048] a Index system construction
[0049] The construction of the evaluation index system needs to comprehensively consider the information sources related to the risk ratio of port investment income. Port risk evaluation and income evaluation are complex multi-factor issues, mainly including the political environment, social environment, economic environment, and natural environment of the port. , international background and other factors. According to the background analysis of port investment risk and income, the selected evaluation indicators are as follows
[0050] ·Standard layer:
[0051] {a1-geopolitical risk, a2-political instability risk, a3-regional conflict risk, a4-economic environment risk, a5-economic instability risk, a6-cultural difference risk, a7-great power game benefits, a8-my country's State income, a9-port's own value}
[0052] ·Indicator layer:
[0053]
[0054]
[0055] b cloud model evaluation
[0056] Cloud model evaluation involves inde...
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The invention provides a port investment value evaluation method based on a cloud model-super-efficiency interval DEA, and the method comprises the steps: (1) constructing an index system, and collecting corresponding index information; (2) processing the index information into semantic information representing a grade standard, and performing quantitative evaluation on the semantic information byapplying a cloud model theory to generate a comprehensive evaluation cloud set; (3) selecting basic element intervals of the comprehensive cloud as input and output data of a super-efficiency interval DEA, the port investment risk evaluation cloud set serves as input data, the port investment value serves as output data, and obtaining a port investment efficiency interval; (4) judging the effectiveness of port investment based on the port investment efficiency interval to realize port zoning; and (5) introducing an investment preference coefficient, and constructing an investment preference-based port investment expected efficiency value calculation equation. According to the method, port optimization decision can be realized, and the problems of complex environment quantitative evaluation, efficiency evaluation and the like are effectively solved.
Description
technical field [0001] The invention relates to the technical field of ocean engineering, in particular to a port investment value evaluation method based on cloud model-super-efficiency interval DEA. Background technique [0002] At present, there are few studies on the value and risk of overseas ports from a quantitative perspective, especially the lack of research that organically unifies the risks and value benefits of overseas port investment to rank port investment priorities. Risks and opportunities coexist in overseas port investment, and it is not just an investment behavior that simply considers risks or opportunities. It is of great significance to evaluate the efficiency ratio of port value, income and risk for optimal port selection. [0003] In this regard, the present invention proposes a port investment value evaluation method based on cloud model-super-efficiency interval DEA. The DEA method is an important algorithm in the field of economic management. It ...
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IPC IPC(8): G06Q30/02G06Q10/06
CPCG06Q30/0206G06Q10/0635
Inventor 杨理智张韧李明刘科峰张帅李昱
Owner NAT UNIV OF DEFENSE TECH