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Table 2 The average precision error rates for k-NN query for main and subcategories. The number of retrieved samples was 10.

From: Audio Query by Example Using Similarity Measures between Probability Density Functions of Features

Method Main Sub Comp. time
Histogram 7.7% 24.3% 0.41 ms
Mahalanobis 1.2% 6.8% 0.013 ms
Bhattacharyya 1.3% 7.9% 6.5 ms
KL-Gaussian 5.0% 14.1% 0.19 ms
KL-Goldberger, GMM (12 comp.) 1.1% 6.0% 9.30 ms
KL-variational, GMM (12 comp.) 1.1% 6.0% 20.2 ms
KL-Monte Carlo, GMM (12 comp.) 1.2% 8.6% 510 ms
Euclidean dist. GMM (12 comp.) 1.0% 6.5% 0.87 ms
CLRT-GMM (12 comp.) 0.5% 6.0% 16.6 ms
CLRT-HMM (3 state, 4 comp.) 1.1% 8.5% 39.3 ms