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• W2138428106 abstract "We present a new method for improving the classificacation score in the problem of binary hypothesis testing where the classes are modeled by a Gaussian mixture. We define a cost function which is based on the Chernoff distance and from it a transformation matrix is estimated that maximizes the separation between the classes. Once defined the cost function we derive an iterative method for which we give a simplified version where one mixture component per class is previously selected to participate in the estimation. The initialization of the method is studied and we give two possibilities for this. One is based on the Bhattacharyya distance and the other is based on the average divergence measure. The experiments are carried out over a database of speech with and without pathology and show that our approach represents an improvement in classification scores over other methods also based on matrix transformation." @default.
• W2138428106 created "2016-06-24" @default.
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• W2138428106 date "2006-08-03" @default.
• W2138428106 modified "2023-09-27" @default.
• W2138428106 title "A Chernoff ASED Approach to the Estimation of Transformation Matrices for Binary Hypothesis Testing" @default.
• W2138428106 cites W2112048832 @default.
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• W2138428106 doi "https://doi.org/10.1109/icassp.2006.1661385" @default.
• W2138428106 hasPublicationYear "2006" @default.
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