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This paper provides an improving multi-index method of synthetic evaluation based on the principal component analysis and entropy weight. By applying the method of principal component analysis, we distill the principal component of the evaluating index and confirm the evaluating system. Using the method of entropy weight, we endue the synthetic weight for each index. The synthetic evaluation for the...
In dealing with the problem that the important parameters of a penicillin fermentation process are hard to measure precisely, such as biomass concentration and production concentration, therefore, a soft sensor modeling for the penicillin fermentation based on fuzzy c-means clustering and least square support vector machine (LS-SVM) is proposed. First of all, features of sample data are extracted...
This paper establishes a index system of manufacturing enterprise's credit risk based on logistics finance, which includes product demand attrbute index, enterprise's operation capability index, industry risk index. The qualitative index and quantitative index are measured by fuzzy evaluation (FE) method and principal components analysis (PCA) method respectively. Then the qualitative rating and quantitative...
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