Importance of Using Log Function to Reduce the Correlation between Features in a Multidimensional Feature Space for Text-Independent Speaker Identification

This paper demonstrates the relation between flatness index of the eigen values of the covariance matrix of the feature vectors and the correlation between the features in a multidimensional feature space. The constant distance loci of Mahalanobis metric has been used to interpret the relation. The intuitive interpretation of the flatness index and… (More)