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The traditional determination method of K/S value is testing the CIEL*a*b* value of each dyeing fabric fistly by the color chromatic aberration SC-80, and then, based on the CIEL*a*b* value, they calculate the K/S value scoping 10 nm within 400 nm-700 nm the visible region. These are finished with the help of the software Hyper Choshoku-Senka TX.The RBF neural network is used in this paper to estimate...
At present, the multivariate linear regression analysis was adopted mostly in the biological toxicity forecast through establishment equation of the QSAR, but the error forecasted was big in many situations because of the complexity and nonlinearity of structure-activity relationship, and it has a high request to the sample selection, In this paper forecast model of the nitrobenzene compound biological...
A model of the relationship between the structure of alcohols and their chromatographic retention index has been set by Randic branch index, but the error forecasted was big in many situations because of the complexity and nonlinearity of structure-activity relationship, and it has a high request to the sample selection. A model based on radial basis function (RBF) neural network for determining the...
A model of back_propagation artificial neural network based on Levenberg_Marquardt algorithm for determining the relations between the structure of alcohols and their chromatographic retention indix has been set by means of topological indices. The forecasting results are good when it makes use of the BP neural network to carry out the forecasting, the correlation coefficient has reached 0.999. Therefore,the...
At present, the multivariate linear regression analysis was adopted in the biological toxicity forecast through establishment equation of the QSAR mostly, but the error forecasted was big in many situations because of the complexity and nonlinearity of structure-activity relationship, and it has a high request to the sample selection. In this paper forecast model of the nitrobenzene compound biological...
Forecast model of the nitrobenzene compound biological toxicity has been established based on the RBF neural network, the correlation coefficient between the predicted value and the actual value reaches 0.993. Prediction errorpsilas biggest absolute value is 0.34, the rest is under 0.20.So it is a good forecast mode of the nitrobenzene compound biological activity.
A designing method for counter-propagation neural networks based on rough set theory is presented in this paper. Counter-propagation networks has been applied to various fields because of its topological construction closed to the mankindpsilas brain, while rough set theory has a powerful capability for qualitative analysis. By combining those advantages of the two theories, we can construct a kind...
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