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To construct the discriminant function for the diagnosis of CPD, the equality of the two covariance matrices were studied. Two were different significantly, which means the use of linear discriminant function for this case is not reasonable. According to the above conclusion, the quadratic...
In this paper we have formulated a fuzzy-fuzzy relation which is an extension of the fuzzy one, and have investigated its properties. Using some characteristic property which holds in a family of special fuzzy grades, we have introduced an equivalence relation in an ordinary set. Finally we have...
For a data matrix composed of subjects by rank orders, a hierarchical clustering method is presented, which partitions subjects into statistically homogeneous clusters on the basis of Kendall’s coefficient of concordance W. The algorithm has been found to work successfully. Illustrative examples...
By extending the path analytic method, a new algorithm for causal modeling in epidemiological etiologies is developed, which is based mainly on simple correlation coefficients.
In the present paper we present a method of constructing a system dynamics model. When multiple variables are given, we sum them up by principal component analysis. By utilizing the extracted principal components we construct simultaneous differential equations concerning the original variables....
A quantification method was developed for sorting data collected over a sample of subjects. Given multiple sets of sorting data this method finds, in a multidimensional Euclidian space, a configuration of points in such a way that the sum of squared inter-cluster distances averaged over subjects...
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