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Both Neural networks NN and Multivariate Data Analysis MDA techniques were used to determine mechanica[ tensile properties of steels. NN apparently proved better in dealing with non-linearity effects and complex interactions between the predictors, However, MDA was found essential in improving the quality of the prediction and providing interpretation to the results from NN modeliing. KEYWORDS: artificial neural network; mechanical properties; microalloyed steel; multiple regression; multivariate data analysis; principal components analysis. 1.

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