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Line spectral frequencies modeling by a mixture of von Mises-Fisher distributions.
Zhanyu Ma
Jalil Taghia
W. Bastiaan Kleijn
Arne Leijon
Jun Guo
Published in:
Signal Process. (2015)
Keyphrases
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von mises fisher
multi variate
unit sphere
mixture model
noise model
gaussian distribution
unsupervised classification
heavy tailed distributions
generative model
gaussian mixture model
prior knowledge
maximum likelihood
em algorithm
shape representation
high dimensional spaces