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Table 1 Word error rate (%)and the number of parameters of the proposed DTAM systems and conventional GMM systems on the 1992 WSJ non-verbalized 5K closed-test set

From: Decision tree-based acoustic models for speech recognition

System % WER Number of parameters
DTAM monophone 22.9 451k
DTAM triphone 12.9 766k
DTAM triphone with gender information 11.9 770k
GMM triphone 4 components/mixture 10.1 870k
GMM triphone 8 components/mixture 7.5 1740k