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A multilevel evaluation model integrating Triangular Fuzzy Numbers (TFNs), Analytical Hierarchical Process (AHP) and Grey Relational Analysis (GRA) was Proposed to evaluate Brownfield Redevelopment Projects (BRPs). Three schemes were proposed including 1: Housing Society, 2: Industrial Park 3: Commercial Development. Initially, primary indicators were identified through extensive literature review...
The comprehensive index system is a prerequisite and basis for ensuring the scientific performance of the product performance evaluation, so, the screening of the index is the necessary link in the construction of the index system. The paper regards the armored vehicle PHM system as a special product, aiming at the problem that the redundancy of the primary index set of the armored vehicle PHM system...
Dempster-Shafer (D-S) evidence theory is widely used for information fusion field. However, one of the main issues of D-S evidence theory is that, when large amount of focal elements in Basic Probability Assignment (BPA) are available, the fusion of BPA requires high computational cost and long computing time. This problem greatly limits its application. In this paper, a novel method for approximating...
In this paper, the effect of air pollutants (PM2.5, PM10, SO2, NO2, CO and O3) on the Air quality index (AQI) from Jan. to Feb., 2016 in Jinan was studied by using correlation analysis and path analysis. The results of the correlation analysis show that AQI has a negative correlation with O3, and has a positive correlation with PM2.5, PM10, SO2, NO2 and CO. Meanwhile, PM2.5, PM10, SO2, NO2 and CO...
Fault diagnosis of the wind power system is a common problem in the routine maintenance of the wind farm. However, most researches and practical applications focus on separate components, which do not take correlations of different components into consideration. This paper presents a novel two-layer Probabilistic Signed Directed Graph (PSDG) method for the fault diagnosis of the overall wind power...
In order to effectively control the risk of software project and overcome the effect of lack data and human subjective factors in the traditional evaluation, the transformation of quantification and reduction of natural language is realized, so a new evaluation model is put forward. Based on the concepts of risk weight, expert trust, risk consequence and so on, we use the correlation coefficient to...
Magnitude-only resting-state fMRI data have been largely investigated via independent component analysis (ICA) for exacting spatial maps (SMs) and time courses. However, the native complex-valued fMRI data have rarely been studied. Motivated by the significant improvements achieved by ICA of complex-valued task fMRI data than magnitude-only task fMRI data, we present an efficient method for de-noising...
The efficiency of communication system is the key factor for the operational capability of naval ship. Through analyzing the evaluation index of naval fleet's communication system, a satisfactory-degree based on efficiency evaluation model is founded by applying the grey relational analysis. The steps of the model include gathering index data based on index tree, constituting the reference sequence...
Through the analysis of the reliability and validity for historical data of the students' evaluation of teaching, it is found that teacher-centered evaluation index system is the main reason for the decrease of the reliability and validity of the evaluation results. Therefore, a new evaluation index system with the students as the subject is constructed on the basis of extensive solicit their opinions,...
In view of the shortages of Price forecast for power device, a new forecast model GPCR was proposed in this paper. By analyzing the main problems in the current procurement of Power Grid Corp, this paper uses grey relational analysis (GRA) and principal component regression (PCR) to forecast the price of power device. In the experiments, we prove that the proposed method is effective, and show the...
In previous studies, the correlation between the vegetation index and meteorological factors were investigated with in intervals defined by the day-of-year. Compared with the day-of-year, the accumulated growing degree days (AGDD) more effectively reflect vegetation growing stage, which serves as important references in agricultural management and disaster prediction. From this end, it is also worth...
In order to improve European biodiversity, natural habitats need to be restored and improved within a large European network of protected areas (Natura 2000). Therefore, agricultural land often needs to be converted to nature. Lowering soil nitrogen and phosphorus levels appears to be a necessary prerequisite for a successful restoration. To select which agricultural fields are most suitable for conversion...
As the important factors affecting the economic growth, system innovation and technological innovation have been widely attended. But there is little quantitative research on them. According to the theory of grey correlation analysis, this paper calculates the contribution degree to the economic growth through 10 indexes which can measure the system and technological innovation from 2005 to 2014....
In order to select the better wine grape varieties, and improve wine quality evaluation standards, the paper made a cluster analysis of wine grape samples based on the selected 57 physicochemical indexes. It's also classified different categories of wine grape after comparing the results of the wine quality evaluation. SPSS for canonical correlation analysis was used to find typical indicators, which...
The paper deals with the task of formation a joint criteria for the functional state of the person evaluation based on heart rate variability parameters and synchronization degree between the cardiovascular and respiratory systems parameter. It is shown that proposed in previous studies method of forming a criterion of synchronization based on the Fechner's correlation coefficient has a significant...
We studied the interrelation between the echocardiographic indices and the indices of collagenolysis system in 68 patients with progressive chronic heart failure with preserved ejection fraction and thick walls of the left ventricle. We found that while the tissue inhibitor TIMP-1 level is independent of the left ventricular dilation status, after being normalized to the individual matrix metalloproteinases...
How to apply valid selecting predictors and scientific evaluating methods is a critical issue coaches' selection. In this paper, we proposed a new evaluation model based on Analytic Hierarchy Process (AHP) and Grey Correlation Theory. Grey Correlation Theory was used to calculate the grey correlation coefficients of the evaluation object, and AHP was used to determine the weights of the evaluation...
With the development of smart grid and opening-up progress of the electricity market, Customer Relationship Management (CRM) plays a more and more important role in the power electric industry. Conducting medium and long term consumption pattern analysis of major customers can help the electricity providers grasp the changing trends of the future consumption, and thus better formulate the dedicated...
Fractal image compression is an image compression technique which is based on local similarity of image structure. Fractal image compression provides good quality of reconstructed image and high compression ratio with extra feature of fast decompression. Fractal image compression suffers from time consumption in encoding phase. This paper presents a method to reduce the complexity in coding time....
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