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Grey correlation degree

WebNov 15, 2024 · Grey correlation analysis, which is a mathematical statistical method, is usually applied to clarify the correlation degree among different factors [32]. This method can be used to determine those parameters with high correlation with the heat transfer limit of a LHP, and to evaluate whether the selected variables have high correlation with the ... WebWe use the entropy weight method to determine index’s comprehensive weight and according to the principle of grey correlation theory calculate the correlation degree. We choose 8 electric power enterprises as examples and use this method analyze their financial performance level.

Grey relational analysis, principal component analysis and forecasting ...

WebDec 5, 2024 · The grey correlation entropy analysis method is developed in this research to analyze the influence of concrete air void structure parameters (air content, spacing factor, average chord length and void specific surface area) on the compressive strength and damage quantity of MWCNTs-FAC samples. The calculation method is as follows. black and white checkered t shirt women https://thecircuit-collective.com

Gray correlation degree analysis of controlling factors on …

WebJan 6, 2024 · Grey correlation degree is a dimensionless quantity, it is used to identify whether there is a connection between the reference number and comparative sequence, and the specific relation between them. Web206Gray correlation degree analysis of controlling factors on coal deformation. (1) Laboratory test Rock mechanics parameters can be gotten by laboratory mechanical … WebAug 19, 2024 · A measure of the correlation between two systems or factors is called the correlation degree. If the relative changes between the two are basically the same in … black and white checkered valance curtains

An optimal selection method for exterior design schemes of …

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Grey correlation degree

Applied Sciences Free Full-Text Distribution and Prediction of ...

Fig. 1 illustrates the upward tendency in the KOSPI 200 index. An ADF test was … The temperature-mortality relation varies greatly by latitude and climatic zone. … WebMar 30, 2024 · Comprehensive evaluation of grey correlation degree and entropy weight method. A reference variety should be constructed in the process of comprehensive evaluation according to the theory of grey system, which means the reference sequence (X 0) for comparison, and the character value of each variety is X i (Lv et al. 2024).

Grey correlation degree

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WebApr 10, 2024 · Then, grey correlation theory is used to obtain the track correlation degree between asynchronous tracks and establish the correlation matrix. Finally, the Jonker-Volgenant algorithm and classical allocation method are combined to realize TTTA. WebThe correlation degrees of temperature and operating pressure to SCC susceptibility were calculated using the grey relational theory. The correlation degree of temperature to …

Grey relational analysis (GRA) was developed by Deng Julong of Huazhong University of Science and Technology. It is one of the most widely used models of grey system theory. GRA uses a specific concept of information. It defines situations with no information as black, and those with perfect information as white. However, neither of these idealized situations ever occurs in real world problems. In fact, situations between these extremes, which contain partial information, a… WebRecently, several methods to find similarity of data format and correlation between data and signal have been used for solving correlation of these things. The disadvantages of …

WebThe grey correlation degree of soil layer density, vehicle mass and vehicle speed to displacement, velocity, and acceleration is 0.7951–0.9993, which indicates that their influence is significant. This study can provide reference for the design and construction of similar civil air defense constructions. Keywords: WebJul 17, 2024 · Grey correlation degree is a model to quantitatively analyze the integration degree between subsystems and systems during system operation by calculating the correlation degree of …

WebApr 10, 2024 · The gray correlation degree was the highest between the soil improvement and soil fertilization projects. This is different from the studies by Zhang et al. [ 38 ] and Chen et al. [ 39 ], who found that after the construction of well-facilitated farmland, the farmland quality grade improved, and the irrigation and drainage indicators showed the ...

WebGrey relational coefficient and correlation degree. Correlation degree was used to describe degree of correlation of two systems in the process of development and changes. Using grey correlation analysis method can analyze more accurately the correlation between the two systems through a small amount of data. T correlation coefficient was … gadwal tourist placesWebFeb 24, 2024 · Grey correlation analysis can be used to measure the degree of correlation of factors, but it is also used in comprehensive evaluation in some papers. … black and white checkered vans kidsWebDec 31, 2024 · In this paper, a MLR-GCD (Multiple Linear Regression Grey Correlation Degree) prediction model for the development trend of Chengdu Plain Economic Zone is proposed. black and white checkered vase